20122568920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1\times {\mathrm{24683}}^1$

素因数の和:25012

約数の個数: 64

約数和(自身を含む): 45986292000

約数和(自身を除く): 25863723080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 229, 356, 445, 458, 712, 890, 916, 1145, 1780, 1832, 2290, 3560, 4580, 9160, 20381, 24683, 40762, 49366, 81524, 98732, 101905, 123415, 163048, 197464, 203810, 246830, 407620, 493660, 815240, 987320, 2196787, 4393574, 5652407, 8787148, 10983935, 11304814, 17574296, 21967870, 22609628, 28262035, 43935740, 45219256, 56524070, 87871480, 113048140, 226096280, 503064223, 1006128446, 2012256892, 2515321115, 4024513784, 5030642230, 10061284460, 20122568920]

約数ペア:

[(1, 20122568920), (2, 10061284460), (4, 5030642230), (5, 4024513784), (8, 2515321115), (10, 2012256892), (20, 1006128446), (40, 503064223), (89, 226096280), (178, 113048140), (229, 87871480), (356, 56524070), (445, 45219256), (458, 43935740), (712, 28262035), (890, 22609628), (916, 21967870), (1145, 17574296), (1780, 11304814), (1832, 10983935), (2290, 8787148), (3560, 5652407), (4580, 4393574), (9160, 2196787), (20381, 987320), (24683, 815240), (40762, 493660), (49366, 407620), (81524, 246830), (98732, 203810), (101905, 197464), (123415, 163048)]