9991890

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1609}}^1$

素因数の和:1648

約数の個数: 64

約数和(自身を含む): 27820800

約数和(自身を除く): 17828910

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 90, 115, 135, 138, 207, 230, 270, 345, 414, 621, 690, 1035, 1242, 1609, 2070, 3105, 3218, 4827, 6210, 8045, 9654, 14481, 16090, 24135, 28962, 37007, 43443, 48270, 72405, 74014, 86886, 111021, 144810, 185035, 217215, 222042, 333063, 370070, 434430, 555105, 666126, 999189, 1110210, 1665315, 1998378, 3330630, 4995945, 9991890]

約数ペア:

[(1, 9991890), (2, 4995945), (3, 3330630), (5, 1998378), (6, 1665315), (9, 1110210), (10, 999189), (15, 666126), (18, 555105), (23, 434430), (27, 370070), (30, 333063), (45, 222042), (46, 217215), (54, 185035), (69, 144810), (90, 111021), (115, 86886), (135, 74014), (138, 72405), (207, 48270), (230, 43443), (270, 37007), (345, 28962), (414, 24135), (621, 16090), (690, 14481), (1035, 9654), (1242, 8045), (1609, 6210), (2070, 4827), (3105, 3218)]