513128980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{40277}}^1$

素因数の和:40313

約数の個数: 72

約数和(自身を含む): 1349957448

約数和(自身を除く): 836828468

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6370, 12740, 40277, 80554, 161108, 201385, 281939, 402770, 523601, 563878, 805540, 1047202, 1127756, 1409695, 1973573, 2094404, 2618005, 2819390, 3665207, 3947146, 5236010, 5638780, 7330414, 7894292, 9867865, 10472020, 14660828, 18326035, 19735730, 25656449, 36652070, 39471460, 51312898, 73304140, 102625796, 128282245, 256564490, 513128980]

約数ペア:

[(1, 513128980), (2, 256564490), (4, 128282245), (5, 102625796), (7, 73304140), (10, 51312898), (13, 39471460), (14, 36652070), (20, 25656449), (26, 19735730), (28, 18326035), (35, 14660828), (49, 10472020), (52, 9867865), (65, 7894292), (70, 7330414), (91, 5638780), (98, 5236010), (130, 3947146), (140, 3665207), (182, 2819390), (196, 2618005), (245, 2094404), (260, 1973573), (364, 1409695), (455, 1127756), (490, 1047202), (637, 805540), (910, 563878), (980, 523601), (1274, 402770), (1820, 281939), (2548, 201385), (3185, 161108), (6370, 80554), (12740, 40277)]