81896360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:331

約数の個数: 128

約数和(自身を含む): 229824000

約数和(自身を除く): 147927640

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 149, 151, 182, 260, 280, 298, 302, 364, 455, 520, 596, 604, 728, 745, 755, 910, 1043, 1057, 1192, 1208, 1490, 1510, 1820, 1937, 1963, 2086, 2114, 2980, 3020, 3640, 3874, 3926, 4172, 4228, 5215, 5285, 5960, 6040, 7748, 7852, 8344, 8456, 9685, 9815, 10430, 10570, 13559, 13741, 15496, 15704, 19370, 19630, 20860, 21140, 22499, 27118, 27482, 38740, 39260, 41720, 42280, 44998, 54236, 54964, 67795, 68705, 77480, 78520, 89996, 108472, 109928, 112495, 135590, 137410, 157493, 179992, 224990, 271180, 274820, 292487, 314986, 449980, 542360, 549640, 584974, 629972, 787465, 899960, 1169948, 1259944, 1462435, 1574930, 2047409, 2339896, 2924870, 3149860, 4094818, 5849740, 6299720, 8189636, 10237045, 11699480, 16379272, 20474090, 40948180, 81896360]

約数ペア:

[(1, 81896360), (2, 40948180), (4, 20474090), (5, 16379272), (7, 11699480), (8, 10237045), (10, 8189636), (13, 6299720), (14, 5849740), (20, 4094818), (26, 3149860), (28, 2924870), (35, 2339896), (40, 2047409), (52, 1574930), (56, 1462435), (65, 1259944), (70, 1169948), (91, 899960), (104, 787465), (130, 629972), (140, 584974), (149, 549640), (151, 542360), (182, 449980), (260, 314986), (280, 292487), (298, 274820), (302, 271180), (364, 224990), (455, 179992), (520, 157493), (596, 137410), (604, 135590), (728, 112495), (745, 109928), (755, 108472), (910, 89996), (1043, 78520), (1057, 77480), (1192, 68705), (1208, 67795), (1490, 54964), (1510, 54236), (1820, 44998), (1937, 42280), (1963, 41720), (2086, 39260), (2114, 38740), (2980, 27482), (3020, 27118), (3640, 22499), (3874, 21140), (3926, 20860), (4172, 19630), (4228, 19370), (5215, 15704), (5285, 15496), (5960, 13741), (6040, 13559), (7748, 10570), (7852, 10430), (8344, 9815), (8456, 9685)]