31880160

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{131}}^1$

素因数の和:178

約数の個数: 216

約数和(自身を含む): 118702584

約数和(自身を除く): 86822424

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 131, 144, 156, 160, 169, 180, 195, 208, 234, 240, 260, 262, 288, 312, 338, 360, 390, 393, 416, 468, 480, 507, 520, 524, 585, 624, 655, 676, 720, 780, 786, 845, 936, 1014, 1040, 1048, 1170, 1179, 1248, 1310, 1352, 1440, 1521, 1560, 1572, 1690, 1703, 1872, 1965, 2028, 2080, 2096, 2340, 2358, 2535, 2620, 2704, 3042, 3120, 3144, 3380, 3406, 3744, 3930, 4056, 4192, 4680, 4716, 5070, 5109, 5240, 5408, 5895, 6084, 6240, 6288, 6760, 6812, 7605, 7860, 8112, 8515, 9360, 9432, 10140, 10218, 10480, 11790, 12168, 12576, 13520, 13624, 15210, 15327, 15720, 16224, 17030, 18720, 18864, 20280, 20436, 20960, 22139, 23580, 24336, 25545, 27040, 27248, 30420, 30654, 31440, 34060, 37728, 40560, 40872, 44278, 47160, 48672, 51090, 54496, 60840, 61308, 62880, 66417, 68120, 76635, 81120, 81744, 88556, 94320, 102180, 110695, 121680, 122616, 132834, 136240, 153270, 163488, 177112, 188640, 199251, 204360, 221390, 243360, 245232, 265668, 272480, 306540, 332085, 354224, 398502, 408720, 442780, 490464, 531336, 613080, 664170, 708448, 797004, 817440, 885560, 996255, 1062672, 1226160, 1328340, 1594008, 1771120, 1992510, 2125344, 2452320, 2656680, 3188016, 3542240, 3985020, 5313360, 6376032, 7970040, 10626720, 15940080, 31880160]

約数ペア:

[(1, 31880160), (2, 15940080), (3, 10626720), (4, 7970040), (5, 6376032), (6, 5313360), (8, 3985020), (9, 3542240), (10, 3188016), (12, 2656680), (13, 2452320), (15, 2125344), (16, 1992510), (18, 1771120), (20, 1594008), (24, 1328340), (26, 1226160), (30, 1062672), (32, 996255), (36, 885560), (39, 817440), (40, 797004), (45, 708448), (48, 664170), (52, 613080), (60, 531336), (65, 490464), (72, 442780), (78, 408720), (80, 398502), (90, 354224), (96, 332085), (104, 306540), (117, 272480), (120, 265668), (130, 245232), (131, 243360), (144, 221390), (156, 204360), (160, 199251), (169, 188640), (180, 177112), (195, 163488), (208, 153270), (234, 136240), (240, 132834), (260, 122616), (262, 121680), (288, 110695), (312, 102180), (338, 94320), (360, 88556), (390, 81744), (393, 81120), (416, 76635), (468, 68120), (480, 66417), (507, 62880), (520, 61308), (524, 60840), (585, 54496), (624, 51090), (655, 48672), (676, 47160), (720, 44278), (780, 40872), (786, 40560), (845, 37728), (936, 34060), (1014, 31440), (1040, 30654), (1048, 30420), (1170, 27248), (1179, 27040), (1248, 25545), (1310, 24336), (1352, 23580), (1440, 22139), (1521, 20960), (1560, 20436), (1572, 20280), (1690, 18864), (1703, 18720), (1872, 17030), (1965, 16224), (2028, 15720), (2080, 15327), (2096, 15210), (2340, 13624), (2358, 13520), (2535, 12576), (2620, 12168), (2704, 11790), (3042, 10480), (3120, 10218), (3144, 10140), (3380, 9432), (3406, 9360), (3744, 8515), (3930, 8112), (4056, 7860), (4192, 7605), (4680, 6812), (4716, 6760), (5070, 6288), (5109, 6240), (5240, 6084), (5408, 5895)]