19597580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{433}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 43163904

約数和(自身を除く): 23566324

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 73, 124, 146, 155, 292, 310, 365, 433, 620, 730, 866, 1460, 1732, 2165, 2263, 4330, 4526, 8660, 9052, 11315, 13423, 22630, 26846, 31609, 45260, 53692, 63218, 67115, 126436, 134230, 158045, 268460, 316090, 632180, 979879, 1959758, 3919516, 4899395, 9798790, 19597580]

約数ペア:

[(1, 19597580), (2, 9798790), (4, 4899395), (5, 3919516), (10, 1959758), (20, 979879), (31, 632180), (62, 316090), (73, 268460), (124, 158045), (146, 134230), (155, 126436), (292, 67115), (310, 63218), (365, 53692), (433, 45260), (620, 31609), (730, 26846), (866, 22630), (1460, 13423), (1732, 11315), (2165, 9052), (2263, 8660), (4330, 4526)]