257015366920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1597}}^1\times {\mathrm{309493}}^1$

素因数の和:311114

約数の個数: 64

約数和(自身を含む): 623159979120

約数和(自身を除く): 366144612200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1597, 3194, 6388, 7985, 12776, 15970, 20761, 31940, 41522, 63880, 83044, 103805, 166088, 207610, 309493, 415220, 618986, 830440, 1237972, 1547465, 2475944, 3094930, 4023409, 6189860, 8046818, 12379720, 16093636, 20117045, 32187272, 40234090, 80468180, 160936360, 494260321, 988520642, 1977041284, 2471301605, 3954082568, 4942603210, 6425384173, 9885206420, 12850768346, 19770412840, 25701536692, 32126920865, 51403073384, 64253841730, 128507683460, 257015366920]

約数ペア:

[(1, 257015366920), (2, 128507683460), (4, 64253841730), (5, 51403073384), (8, 32126920865), (10, 25701536692), (13, 19770412840), (20, 12850768346), (26, 9885206420), (40, 6425384173), (52, 4942603210), (65, 3954082568), (104, 2471301605), (130, 1977041284), (260, 988520642), (520, 494260321), (1597, 160936360), (3194, 80468180), (6388, 40234090), (7985, 32187272), (12776, 20117045), (15970, 16093636), (20761, 12379720), (31940, 8046818), (41522, 6189860), (63880, 4023409), (83044, 3094930), (103805, 2475944), (166088, 1547465), (207610, 1237972), (309493, 830440), (415220, 618986)]