31001880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1$

素因数の和:218

約数の個数: 256

約数和(自身を含む): 121927680

約数和(自身を除く): 90925800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 17, 20, 21, 24, 26, 28, 30, 34, 35, 39, 40, 42, 51, 52, 56, 60, 65, 68, 70, 78, 84, 85, 91, 102, 104, 105, 119, 120, 130, 136, 140, 156, 167, 168, 170, 182, 195, 204, 210, 221, 238, 255, 260, 273, 280, 312, 334, 340, 357, 364, 390, 408, 420, 442, 455, 476, 501, 510, 520, 546, 595, 663, 668, 680, 714, 728, 780, 835, 840, 884, 910, 952, 1002, 1020, 1092, 1105, 1169, 1190, 1326, 1336, 1365, 1428, 1547, 1560, 1670, 1768, 1785, 1820, 2004, 2040, 2171, 2184, 2210, 2338, 2380, 2505, 2652, 2730, 2839, 2856, 3094, 3315, 3340, 3507, 3570, 3640, 4008, 4342, 4420, 4641, 4676, 4760, 5010, 5304, 5460, 5678, 5845, 6188, 6513, 6630, 6680, 7014, 7140, 7735, 8517, 8684, 8840, 9282, 9352, 10020, 10855, 10920, 11356, 11690, 12376, 13026, 13260, 14028, 14195, 14280, 15197, 15470, 17034, 17368, 17535, 18564, 19873, 20040, 21710, 22712, 23205, 23380, 26052, 26520, 28056, 28390, 30394, 30940, 32565, 34068, 35070, 36907, 37128, 39746, 42585, 43420, 45591, 46410, 46760, 52104, 56780, 59619, 60788, 61880, 65130, 68136, 70140, 73814, 75985, 79492, 85170, 86840, 91182, 92820, 99365, 110721, 113560, 119238, 121576, 130260, 140280, 147628, 151970, 158984, 170340, 182364, 184535, 185640, 198730, 221442, 227955, 238476, 258349, 260520, 295256, 298095, 303940, 340680, 364728, 369070, 397460, 442884, 455910, 476952, 516698, 553605, 596190, 607880, 738140, 775047, 794920, 885768, 911820, 1033396, 1107210, 1192380, 1291745, 1476280, 1550094, 1823640, 2066792, 2214420, 2384760, 2583490, 3100188, 3875235, 4428840, 5166980, 6200376, 7750470, 10333960, 15500940, 31001880]

約数ペア:

[(1, 31001880), (2, 15500940), (3, 10333960), (4, 7750470), (5, 6200376), (6, 5166980), (7, 4428840), (8, 3875235), (10, 3100188), (12, 2583490), (13, 2384760), (14, 2214420), (15, 2066792), (17, 1823640), (20, 1550094), (21, 1476280), (24, 1291745), (26, 1192380), (28, 1107210), (30, 1033396), (34, 911820), (35, 885768), (39, 794920), (40, 775047), (42, 738140), (51, 607880), (52, 596190), (56, 553605), (60, 516698), (65, 476952), (68, 455910), (70, 442884), (78, 397460), (84, 369070), (85, 364728), (91, 340680), (102, 303940), (104, 298095), (105, 295256), (119, 260520), (120, 258349), (130, 238476), (136, 227955), (140, 221442), (156, 198730), (167, 185640), (168, 184535), (170, 182364), (182, 170340), (195, 158984), (204, 151970), (210, 147628), (221, 140280), (238, 130260), (255, 121576), (260, 119238), (273, 113560), (280, 110721), (312, 99365), (334, 92820), (340, 91182), (357, 86840), (364, 85170), (390, 79492), (408, 75985), (420, 73814), (442, 70140), (455, 68136), (476, 65130), (501, 61880), (510, 60788), (520, 59619), (546, 56780), (595, 52104), (663, 46760), (668, 46410), (680, 45591), (714, 43420), (728, 42585), (780, 39746), (835, 37128), (840, 36907), (884, 35070), (910, 34068), (952, 32565), (1002, 30940), (1020, 30394), (1092, 28390), (1105, 28056), (1169, 26520), (1190, 26052), (1326, 23380), (1336, 23205), (1365, 22712), (1428, 21710), (1547, 20040), (1560, 19873), (1670, 18564), (1768, 17535), (1785, 17368), (1820, 17034), (2004, 15470), (2040, 15197), (2171, 14280), (2184, 14195), (2210, 14028), (2338, 13260), (2380, 13026), (2505, 12376), (2652, 11690), (2730, 11356), (2839, 10920), (2856, 10855), (3094, 10020), (3315, 9352), (3340, 9282), (3507, 8840), (3570, 8684), (3640, 8517), (4008, 7735), (4342, 7140), (4420, 7014), (4641, 6680), (4676, 6630), (4760, 6513), (5010, 6188), (5304, 5845), (5460, 5678)]