640776240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4027}}^1$

素因数の和:4076

約数の個数: 240

約数和(自身を含む): 2454405408

約数和(自身を除く): 1813629168

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 17, 18, 20, 24, 26, 30, 34, 36, 39, 40, 45, 48, 51, 52, 60, 65, 68, 72, 78, 80, 85, 90, 102, 104, 117, 120, 130, 136, 144, 153, 156, 170, 180, 195, 204, 208, 221, 234, 240, 255, 260, 272, 306, 312, 340, 360, 390, 408, 442, 468, 510, 520, 585, 612, 624, 663, 680, 720, 765, 780, 816, 884, 936, 1020, 1040, 1105, 1170, 1224, 1326, 1360, 1530, 1560, 1768, 1872, 1989, 2040, 2210, 2340, 2448, 2652, 3060, 3120, 3315, 3536, 3978, 4027, 4080, 4420, 4680, 5304, 6120, 6630, 7956, 8054, 8840, 9360, 9945, 10608, 12081, 12240, 13260, 15912, 16108, 17680, 19890, 20135, 24162, 26520, 31824, 32216, 36243, 39780, 40270, 48324, 52351, 53040, 60405, 64432, 68459, 72486, 79560, 80540, 96648, 104702, 120810, 136918, 144972, 157053, 159120, 161080, 181215, 193296, 205377, 209404, 241620, 261755, 273836, 289944, 314106, 322160, 342295, 362430, 410754, 418808, 471159, 483240, 523510, 547672, 579888, 616131, 628212, 684590, 724860, 785265, 821508, 837616, 889967, 942318, 966480, 1026885, 1047020, 1095344, 1232262, 1256424, 1369180, 1449720, 1570530, 1643016, 1779934, 1884636, 2053770, 2094040, 2355795, 2464524, 2512848, 2669901, 2738360, 2899440, 3080655, 3141060, 3286032, 3559868, 3769272, 4107540, 4188080, 4449835, 4711590, 4929048, 5339802, 5476720, 6161310, 6282120, 7119736, 7538544, 8009703, 8215080, 8899670, 9423180, 9858096, 10679604, 12322620, 12564240, 13349505, 14239472, 16019406, 16430160, 17799340, 18846360, 21359208, 24645240, 26699010, 32038812, 35598680, 37692720, 40048515, 42718416, 49290480, 53398020, 64077624, 71197360, 80097030, 106796040, 128155248, 160194060, 213592080, 320388120, 640776240]

約数ペア:

[(1, 640776240), (2, 320388120), (3, 213592080), (4, 160194060), (5, 128155248), (6, 106796040), (8, 80097030), (9, 71197360), (10, 64077624), (12, 53398020), (13, 49290480), (15, 42718416), (16, 40048515), (17, 37692720), (18, 35598680), (20, 32038812), (24, 26699010), (26, 24645240), (30, 21359208), (34, 18846360), (36, 17799340), (39, 16430160), (40, 16019406), (45, 14239472), (48, 13349505), (51, 12564240), (52, 12322620), (60, 10679604), (65, 9858096), (68, 9423180), (72, 8899670), (78, 8215080), (80, 8009703), (85, 7538544), (90, 7119736), (102, 6282120), (104, 6161310), (117, 5476720), (120, 5339802), (130, 4929048), (136, 4711590), (144, 4449835), (153, 4188080), (156, 4107540), (170, 3769272), (180, 3559868), (195, 3286032), (204, 3141060), (208, 3080655), (221, 2899440), (234, 2738360), (240, 2669901), (255, 2512848), (260, 2464524), (272, 2355795), (306, 2094040), (312, 2053770), (340, 1884636), (360, 1779934), (390, 1643016), (408, 1570530), (442, 1449720), (468, 1369180), (510, 1256424), (520, 1232262), (585, 1095344), (612, 1047020), (624, 1026885), (663, 966480), (680, 942318), (720, 889967), (765, 837616), (780, 821508), (816, 785265), (884, 724860), (936, 684590), (1020, 628212), (1040, 616131), (1105, 579888), (1170, 547672), (1224, 523510), (1326, 483240), (1360, 471159), (1530, 418808), (1560, 410754), (1768, 362430), (1872, 342295), (1989, 322160), (2040, 314106), (2210, 289944), (2340, 273836), (2448, 261755), (2652, 241620), (3060, 209404), (3120, 205377), (3315, 193296), (3536, 181215), (3978, 161080), (4027, 159120), (4080, 157053), (4420, 144972), (4680, 136918), (5304, 120810), (6120, 104702), (6630, 96648), (7956, 80540), (8054, 79560), (8840, 72486), (9360, 68459), (9945, 64432), (10608, 60405), (12081, 53040), (12240, 52351), (13260, 48324), (15912, 40270), (16108, 39780), (17680, 36243), (19890, 32216), (20135, 31824), (24162, 26520)]