30489680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1543}}^1$

素因数の和:1588

約数の個数: 80

約数和(自身を含む): 80411520

約数和(自身を除く): 49921840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1543, 1976, 2470, 3086, 3952, 4940, 6172, 7715, 9880, 12344, 15430, 19760, 20059, 24688, 29317, 30860, 40118, 58634, 61720, 80236, 100295, 117268, 123440, 146585, 160472, 200590, 234536, 293170, 320944, 381121, 401180, 469072, 586340, 762242, 802360, 1172680, 1524484, 1604720, 1905605, 2345360, 3048968, 3811210, 6097936, 7622420, 15244840, 30489680]

約数ペア:

[(1, 30489680), (2, 15244840), (4, 7622420), (5, 6097936), (8, 3811210), (10, 3048968), (13, 2345360), (16, 1905605), (19, 1604720), (20, 1524484), (26, 1172680), (38, 802360), (40, 762242), (52, 586340), (65, 469072), (76, 401180), (80, 381121), (95, 320944), (104, 293170), (130, 234536), (152, 200590), (190, 160472), (208, 146585), (247, 123440), (260, 117268), (304, 100295), (380, 80236), (494, 61720), (520, 58634), (760, 40118), (988, 30860), (1040, 29317), (1235, 24688), (1520, 20059), (1543, 19760), (1976, 15430), (2470, 12344), (3086, 9880), (3952, 7715), (4940, 6172)]