499532720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{145213}}^1$

素因数の和:145269

約数の個数: 40

約数和(自身を含む): 1188431376

約数和(自身を除く): 688898656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 145213, 290426, 580852, 726065, 1161704, 1452130, 2323408, 2904260, 5808520, 6244159, 11617040, 12488318, 24976636, 31220795, 49953272, 62441590, 99906544, 124883180, 249766360, 499532720]

約数ペア:

[(1, 499532720), (2, 249766360), (4, 124883180), (5, 99906544), (8, 62441590), (10, 49953272), (16, 31220795), (20, 24976636), (40, 12488318), (43, 11617040), (80, 6244159), (86, 5808520), (172, 2904260), (215, 2323408), (344, 1452130), (430, 1161704), (688, 726065), (860, 580852), (1720, 290426), (3440, 145213)]