2021796200

素因数分解:

$2^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{165721}}^1$

素因数の和:165798

約数の個数: 48

約数和(自身を含む): 4777765260

約数和(自身を除く): 2755969060

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 100, 122, 200, 244, 305, 488, 610, 1220, 1525, 2440, 3050, 6100, 12200, 165721, 331442, 662884, 828605, 1325768, 1657210, 3314420, 4143025, 6628840, 8286050, 10108981, 16572100, 20217962, 33144200, 40435924, 50544905, 80871848, 101089810, 202179620, 252724525, 404359240, 505449050, 1010898100, 2021796200]

約数ペア:

[(1, 2021796200), (2, 1010898100), (4, 505449050), (5, 404359240), (8, 252724525), (10, 202179620), (20, 101089810), (25, 80871848), (40, 50544905), (50, 40435924), (61, 33144200), (100, 20217962), (122, 16572100), (200, 10108981), (244, 8286050), (305, 6628840), (488, 4143025), (610, 3314420), (1220, 1657210), (1525, 1325768), (2440, 828605), (3050, 662884), (6100, 331442), (12200, 165721)]