251319840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1621}}^1$

素因数の和:1675

約数の個数: 192

約数和(自身を含む): 882887040

約数和(自身を除く): 631567200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 19, 20, 24, 30, 32, 34, 38, 40, 48, 51, 57, 60, 68, 76, 80, 85, 95, 96, 102, 114, 120, 136, 152, 160, 170, 190, 204, 228, 240, 255, 272, 285, 304, 323, 340, 380, 408, 456, 480, 510, 544, 570, 608, 646, 680, 760, 816, 912, 969, 1020, 1140, 1292, 1360, 1520, 1615, 1621, 1632, 1824, 1938, 2040, 2280, 2584, 2720, 3040, 3230, 3242, 3876, 4080, 4560, 4845, 4863, 5168, 6460, 6484, 7752, 8105, 8160, 9120, 9690, 9726, 10336, 12920, 12968, 15504, 16210, 19380, 19452, 24315, 25840, 25936, 27557, 30799, 31008, 32420, 38760, 38904, 48630, 51680, 51872, 55114, 61598, 64840, 77520, 77808, 82671, 92397, 97260, 110228, 123196, 129680, 137785, 153995, 155040, 155616, 165342, 184794, 194520, 220456, 246392, 259360, 275570, 307990, 330684, 369588, 389040, 413355, 440912, 461985, 492784, 523583, 551140, 615980, 661368, 739176, 778080, 826710, 881824, 923970, 985568, 1047166, 1102280, 1231960, 1322736, 1478352, 1570749, 1653420, 1847940, 2094332, 2204560, 2463920, 2617915, 2645472, 2956704, 3141498, 3306840, 3695880, 4188664, 4409120, 4927840, 5235830, 6282996, 6613680, 7391760, 7853745, 8377328, 10471660, 12565992, 13227360, 14783520, 15707490, 16754656, 20943320, 25131984, 31414980, 41886640, 50263968, 62829960, 83773280, 125659920, 251319840]

約数ペア:

[(1, 251319840), (2, 125659920), (3, 83773280), (4, 62829960), (5, 50263968), (6, 41886640), (8, 31414980), (10, 25131984), (12, 20943320), (15, 16754656), (16, 15707490), (17, 14783520), (19, 13227360), (20, 12565992), (24, 10471660), (30, 8377328), (32, 7853745), (34, 7391760), (38, 6613680), (40, 6282996), (48, 5235830), (51, 4927840), (57, 4409120), (60, 4188664), (68, 3695880), (76, 3306840), (80, 3141498), (85, 2956704), (95, 2645472), (96, 2617915), (102, 2463920), (114, 2204560), (120, 2094332), (136, 1847940), (152, 1653420), (160, 1570749), (170, 1478352), (190, 1322736), (204, 1231960), (228, 1102280), (240, 1047166), (255, 985568), (272, 923970), (285, 881824), (304, 826710), (323, 778080), (340, 739176), (380, 661368), (408, 615980), (456, 551140), (480, 523583), (510, 492784), (544, 461985), (570, 440912), (608, 413355), (646, 389040), (680, 369588), (760, 330684), (816, 307990), (912, 275570), (969, 259360), (1020, 246392), (1140, 220456), (1292, 194520), (1360, 184794), (1520, 165342), (1615, 155616), (1621, 155040), (1632, 153995), (1824, 137785), (1938, 129680), (2040, 123196), (2280, 110228), (2584, 97260), (2720, 92397), (3040, 82671), (3230, 77808), (3242, 77520), (3876, 64840), (4080, 61598), (4560, 55114), (4845, 51872), (4863, 51680), (5168, 48630), (6460, 38904), (6484, 38760), (7752, 32420), (8105, 31008), (8160, 30799), (9120, 27557), (9690, 25936), (9726, 25840), (10336, 24315), (12920, 19452), (12968, 19380), (15504, 16210)]