256290120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:396

約数の個数: 192

約数和(自身を含む): 870704640

約数和(自身を除く): 614414520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 37, 40, 45, 60, 71, 72, 74, 90, 111, 120, 142, 148, 180, 185, 213, 222, 271, 284, 296, 333, 355, 360, 370, 426, 444, 542, 555, 568, 639, 666, 710, 740, 813, 852, 888, 1065, 1084, 1110, 1278, 1332, 1355, 1420, 1480, 1626, 1665, 1704, 2130, 2168, 2220, 2439, 2556, 2627, 2664, 2710, 2840, 3195, 3252, 3330, 4065, 4260, 4440, 4878, 5112, 5254, 5420, 6390, 6504, 6660, 7881, 8130, 8520, 9756, 10027, 10508, 10840, 12195, 12780, 13135, 13320, 15762, 16260, 19241, 19512, 20054, 21016, 23643, 24390, 25560, 26270, 30081, 31524, 32520, 38482, 39405, 40108, 47286, 48780, 50135, 52540, 57723, 60162, 63048, 76964, 78810, 80216, 90243, 94572, 96205, 97560, 100270, 105080, 115446, 118215, 120324, 150405, 153928, 157620, 173169, 180486, 189144, 192410, 200540, 230892, 236430, 240648, 288615, 300810, 315240, 346338, 360972, 384820, 401080, 451215, 461784, 472860, 577230, 601620, 692676, 711917, 721944, 769640, 865845, 902430, 945720, 1154460, 1203240, 1385352, 1423834, 1731690, 1804860, 2135751, 2308920, 2847668, 3463380, 3559585, 3609720, 4271502, 5695336, 6407253, 6926760, 7119170, 8543004, 10678755, 12814506, 14238340, 17086008, 21357510, 25629012, 28476680, 32036265, 42715020, 51258024, 64072530, 85430040, 128145060, 256290120]

約数ペア:

[(1, 256290120), (2, 128145060), (3, 85430040), (4, 64072530), (5, 51258024), (6, 42715020), (8, 32036265), (9, 28476680), (10, 25629012), (12, 21357510), (15, 17086008), (18, 14238340), (20, 12814506), (24, 10678755), (30, 8543004), (36, 7119170), (37, 6926760), (40, 6407253), (45, 5695336), (60, 4271502), (71, 3609720), (72, 3559585), (74, 3463380), (90, 2847668), (111, 2308920), (120, 2135751), (142, 1804860), (148, 1731690), (180, 1423834), (185, 1385352), (213, 1203240), (222, 1154460), (271, 945720), (284, 902430), (296, 865845), (333, 769640), (355, 721944), (360, 711917), (370, 692676), (426, 601620), (444, 577230), (542, 472860), (555, 461784), (568, 451215), (639, 401080), (666, 384820), (710, 360972), (740, 346338), (813, 315240), (852, 300810), (888, 288615), (1065, 240648), (1084, 236430), (1110, 230892), (1278, 200540), (1332, 192410), (1355, 189144), (1420, 180486), (1480, 173169), (1626, 157620), (1665, 153928), (1704, 150405), (2130, 120324), (2168, 118215), (2220, 115446), (2439, 105080), (2556, 100270), (2627, 97560), (2664, 96205), (2710, 94572), (2840, 90243), (3195, 80216), (3252, 78810), (3330, 76964), (4065, 63048), (4260, 60162), (4440, 57723), (4878, 52540), (5112, 50135), (5254, 48780), (5420, 47286), (6390, 40108), (6504, 39405), (6660, 38482), (7881, 32520), (8130, 31524), (8520, 30081), (9756, 26270), (10027, 25560), (10508, 24390), (10840, 23643), (12195, 21016), (12780, 20054), (13135, 19512), (13320, 19241), (15762, 16260)]