491790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{97}}^1$

素因数の和:133

約数の個数: 48

約数和(自身を含む): 1291248

約数和(自身を除く): 799458

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 97, 130, 169, 194, 195, 291, 338, 390, 485, 507, 582, 845, 970, 1014, 1261, 1455, 1690, 2522, 2535, 2910, 3783, 5070, 6305, 7566, 12610, 16393, 18915, 32786, 37830, 49179, 81965, 98358, 163930, 245895, 491790]

約数ペア:

[(1, 491790), (2, 245895), (3, 163930), (5, 98358), (6, 81965), (10, 49179), (13, 37830), (15, 32786), (26, 18915), (30, 16393), (39, 12610), (65, 7566), (78, 6305), (97, 5070), (130, 3783), (169, 2910), (194, 2535), (195, 2522), (291, 1690), (338, 1455), (390, 1261), (485, 1014), (507, 970), (582, 845)]