256908780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:301

約数の個数: 192

約数和(自身を含む): 838656000

約数和(自身を除く): 581747220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 90, 93, 103, 108, 124, 135, 149, 155, 180, 186, 206, 270, 279, 298, 309, 310, 372, 412, 447, 465, 515, 540, 558, 596, 618, 620, 745, 837, 894, 927, 930, 1030, 1116, 1236, 1341, 1395, 1490, 1545, 1674, 1788, 1854, 1860, 2060, 2235, 2682, 2781, 2790, 2980, 3090, 3193, 3348, 3708, 4023, 4185, 4470, 4619, 4635, 5364, 5562, 5580, 6180, 6386, 6705, 8046, 8370, 8940, 9238, 9270, 9579, 11124, 12772, 13410, 13857, 13905, 15347, 15965, 16092, 16740, 18476, 18540, 19158, 20115, 23095, 26820, 27714, 27810, 28737, 30694, 31930, 38316, 40230, 41571, 46041, 46190, 47895, 55428, 55620, 57474, 61388, 63860, 69285, 76735, 80460, 83142, 86211, 92082, 92380, 95790, 114948, 124713, 138123, 138570, 143685, 153470, 166284, 172422, 184164, 191580, 207855, 230205, 249426, 276246, 277140, 287370, 306940, 344844, 414369, 415710, 431055, 460410, 475757, 498852, 552492, 574740, 623565, 690615, 828738, 831420, 862110, 920820, 951514, 1247130, 1381230, 1427271, 1657476, 1724220, 1903028, 2071845, 2378785, 2494260, 2762460, 2854542, 4143690, 4281813, 4757570, 5709084, 7136355, 8287380, 8563626, 9515140, 12845439, 14272710, 17127252, 21409065, 25690878, 28545420, 42818130, 51381756, 64227195, 85636260, 128454390, 256908780]

約数ペア:

[(1, 256908780), (2, 128454390), (3, 85636260), (4, 64227195), (5, 51381756), (6, 42818130), (9, 28545420), (10, 25690878), (12, 21409065), (15, 17127252), (18, 14272710), (20, 12845439), (27, 9515140), (30, 8563626), (31, 8287380), (36, 7136355), (45, 5709084), (54, 4757570), (60, 4281813), (62, 4143690), (90, 2854542), (93, 2762460), (103, 2494260), (108, 2378785), (124, 2071845), (135, 1903028), (149, 1724220), (155, 1657476), (180, 1427271), (186, 1381230), (206, 1247130), (270, 951514), (279, 920820), (298, 862110), (309, 831420), (310, 828738), (372, 690615), (412, 623565), (447, 574740), (465, 552492), (515, 498852), (540, 475757), (558, 460410), (596, 431055), (618, 415710), (620, 414369), (745, 344844), (837, 306940), (894, 287370), (927, 277140), (930, 276246), (1030, 249426), (1116, 230205), (1236, 207855), (1341, 191580), (1395, 184164), (1490, 172422), (1545, 166284), (1674, 153470), (1788, 143685), (1854, 138570), (1860, 138123), (2060, 124713), (2235, 114948), (2682, 95790), (2781, 92380), (2790, 92082), (2980, 86211), (3090, 83142), (3193, 80460), (3348, 76735), (3708, 69285), (4023, 63860), (4185, 61388), (4470, 57474), (4619, 55620), (4635, 55428), (5364, 47895), (5562, 46190), (5580, 46041), (6180, 41571), (6386, 40230), (6705, 38316), (8046, 31930), (8370, 30694), (8940, 28737), (9238, 27810), (9270, 27714), (9579, 26820), (11124, 23095), (12772, 20115), (13410, 19158), (13857, 18540), (13905, 18476), (15347, 16740), (15965, 16092)]