20219034520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{117307}}^1$

素因数の和:117488

約数の個数: 64

約数和(自身を含む): 47298585600

約数和(自身を除く): 27079551080

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 139, 155, 248, 278, 310, 556, 620, 695, 1112, 1240, 1390, 2780, 4309, 5560, 8618, 17236, 21545, 34472, 43090, 86180, 117307, 172360, 234614, 469228, 586535, 938456, 1173070, 2346140, 3636517, 4692280, 7273034, 14546068, 16305673, 18182585, 29092136, 32611346, 36365170, 65222692, 72730340, 81528365, 130445384, 145460680, 163056730, 326113460, 505475863, 652226920, 1010951726, 2021903452, 2527379315, 4043806904, 5054758630, 10109517260, 20219034520]

約数ペア:

[(1, 20219034520), (2, 10109517260), (4, 5054758630), (5, 4043806904), (8, 2527379315), (10, 2021903452), (20, 1010951726), (31, 652226920), (40, 505475863), (62, 326113460), (124, 163056730), (139, 145460680), (155, 130445384), (248, 81528365), (278, 72730340), (310, 65222692), (556, 36365170), (620, 32611346), (695, 29092136), (1112, 18182585), (1240, 16305673), (1390, 14546068), (2780, 7273034), (4309, 4692280), (5560, 3636517), (8618, 2346140), (17236, 1173070), (21545, 938456), (34472, 586535), (43090, 469228), (86180, 234614), (117307, 172360)]