30260020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{653}}^1$

素因数の和:1000

約数の個数: 48

約数和(自身を含む): 72955008

約数和(自身を除く): 42694988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 331, 653, 662, 1306, 1324, 1655, 2317, 2612, 3265, 3310, 4571, 4634, 6530, 6620, 9142, 9268, 11585, 13060, 18284, 22855, 23170, 45710, 46340, 91420, 216143, 432286, 864572, 1080715, 1513001, 2161430, 3026002, 4322860, 6052004, 7565005, 15130010, 30260020]

約数ペア:

[(1, 30260020), (2, 15130010), (4, 7565005), (5, 6052004), (7, 4322860), (10, 3026002), (14, 2161430), (20, 1513001), (28, 1080715), (35, 864572), (70, 432286), (140, 216143), (331, 91420), (653, 46340), (662, 45710), (1306, 23170), (1324, 22855), (1655, 18284), (2317, 13060), (2612, 11585), (3265, 9268), (3310, 9142), (4571, 6620), (4634, 6530)]