238561240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97771}}^1$

素因数の和:97843

約数の個数: 32

約数和(自身を含む): 545567760

約数和(自身を除く): 307006520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 97771, 195542, 391084, 488855, 782168, 977710, 1955420, 3910840, 5964031, 11928062, 23856124, 29820155, 47712248, 59640310, 119280620, 238561240]

約数ペア:

[(1, 238561240), (2, 119280620), (4, 59640310), (5, 47712248), (8, 29820155), (10, 23856124), (20, 11928062), (40, 5964031), (61, 3910840), (122, 1955420), (244, 977710), (305, 782168), (488, 488855), (610, 391084), (1220, 195542), (2440, 97771)]