201296020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{2179}}^1$

素因数の和:2368

約数の個数: 48

約数和(自身を含む): 439488000

約数和(自身を除く): 238191980

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 149, 155, 298, 310, 596, 620, 745, 1490, 2179, 2980, 4358, 4619, 8716, 9238, 10895, 18476, 21790, 23095, 43580, 46190, 67549, 92380, 135098, 270196, 324671, 337745, 649342, 675490, 1298684, 1350980, 1623355, 3246710, 6493420, 10064801, 20129602, 40259204, 50324005, 100648010, 201296020]

約数ペア:

[(1, 201296020), (2, 100648010), (4, 50324005), (5, 40259204), (10, 20129602), (20, 10064801), (31, 6493420), (62, 3246710), (124, 1623355), (149, 1350980), (155, 1298684), (298, 675490), (310, 649342), (596, 337745), (620, 324671), (745, 270196), (1490, 135098), (2179, 92380), (2980, 67549), (4358, 46190), (4619, 43580), (8716, 23095), (9238, 21790), (10895, 18476)]