398592865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{173}}^1\times {\mathrm{257}}^1$

素因数の和:609

約数の個数: 32

約数和(自身を含む): 530084736

約数和(自身を除く): 131491871

約数列:

[1, 5, 11, 55, 163, 173, 257, 815, 865, 1285, 1793, 1903, 2827, 8965, 9515, 14135, 28199, 41891, 44461, 140995, 209455, 222305, 310189, 460801, 489071, 1550945, 2304005, 2445355, 7247143, 36235715, 79718573, 398592865]

約数ペア:

[(1, 398592865), (5, 79718573), (11, 36235715), (55, 7247143), (163, 2445355), (173, 2304005), (257, 1550945), (815, 489071), (865, 460801), (1285, 310189), (1793, 222305), (1903, 209455), (2827, 140995), (8965, 44461), (9515, 41891), (14135, 28199)]