18686880

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{683}}^1$

素因数の和:723

約数の個数: 144

約数和(自身を含む): 67223520

約数和(自身を除く): 48536640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 96, 114, 120, 144, 152, 160, 171, 180, 190, 228, 240, 285, 288, 304, 342, 360, 380, 456, 480, 570, 608, 683, 684, 720, 760, 855, 912, 1140, 1366, 1368, 1440, 1520, 1710, 1824, 2049, 2280, 2732, 2736, 3040, 3415, 3420, 4098, 4560, 5464, 5472, 6147, 6830, 6840, 8196, 9120, 10245, 10928, 12294, 12977, 13660, 13680, 16392, 20490, 21856, 24588, 25954, 27320, 27360, 30735, 32784, 38931, 40980, 49176, 51908, 54640, 61470, 64885, 65568, 77862, 81960, 98352, 103816, 109280, 116793, 122940, 129770, 155724, 163920, 194655, 196704, 207632, 233586, 245880, 259540, 311448, 327840, 389310, 415264, 467172, 491760, 519080, 583965, 622896, 778620, 934344, 983520, 1038160, 1167930, 1245792, 1557240, 1868688, 2076320, 2335860, 3114480, 3737376, 4671720, 6228960, 9343440, 18686880]

約数ペア:

[(1, 18686880), (2, 9343440), (3, 6228960), (4, 4671720), (5, 3737376), (6, 3114480), (8, 2335860), (9, 2076320), (10, 1868688), (12, 1557240), (15, 1245792), (16, 1167930), (18, 1038160), (19, 983520), (20, 934344), (24, 778620), (30, 622896), (32, 583965), (36, 519080), (38, 491760), (40, 467172), (45, 415264), (48, 389310), (57, 327840), (60, 311448), (72, 259540), (76, 245880), (80, 233586), (90, 207632), (95, 196704), (96, 194655), (114, 163920), (120, 155724), (144, 129770), (152, 122940), (160, 116793), (171, 109280), (180, 103816), (190, 98352), (228, 81960), (240, 77862), (285, 65568), (288, 64885), (304, 61470), (342, 54640), (360, 51908), (380, 49176), (456, 40980), (480, 38931), (570, 32784), (608, 30735), (683, 27360), (684, 27320), (720, 25954), (760, 24588), (855, 21856), (912, 20490), (1140, 16392), (1366, 13680), (1368, 13660), (1440, 12977), (1520, 12294), (1710, 10928), (1824, 10245), (2049, 9120), (2280, 8196), (2732, 6840), (2736, 6830), (3040, 6147), (3415, 5472), (3420, 5464), (4098, 4560)]