198715998

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{431}}^1$

素因数の和:729

約数の個数: 64

約数和(自身を含む): 449390592

約数和(自身を除く): 250674594

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 138, 257, 299, 431, 514, 598, 771, 862, 897, 1293, 1542, 1794, 2586, 3341, 5603, 5911, 6682, 9913, 10023, 11206, 11822, 16809, 17733, 19826, 20046, 29739, 33618, 35466, 59478, 76843, 110767, 128869, 153686, 221534, 230529, 257738, 332301, 386607, 461058, 664602, 773214, 1439971, 2547641, 2879942, 4319913, 5095282, 7642923, 8639826, 15285846, 33119333, 66238666, 99357999, 198715998]

約数ペア:

[(1, 198715998), (2, 99357999), (3, 66238666), (6, 33119333), (13, 15285846), (23, 8639826), (26, 7642923), (39, 5095282), (46, 4319913), (69, 2879942), (78, 2547641), (138, 1439971), (257, 773214), (299, 664602), (431, 461058), (514, 386607), (598, 332301), (771, 257738), (862, 230529), (897, 221534), (1293, 153686), (1542, 128869), (1794, 110767), (2586, 76843), (3341, 59478), (5603, 35466), (5911, 33618), (6682, 29739), (9913, 20046), (10023, 19826), (11206, 17733), (11822, 16809)]