219215960

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:756

約数の個数: 64

約数和(自身を含む): 504753120

約数和(自身を除く): 285537160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 157, 268, 314, 335, 521, 536, 628, 670, 785, 1042, 1256, 1340, 1570, 2084, 2605, 2680, 3140, 4168, 5210, 6280, 10420, 10519, 20840, 21038, 34907, 42076, 52595, 69814, 81797, 84152, 105190, 139628, 163594, 174535, 210380, 279256, 327188, 349070, 408985, 420760, 654376, 698140, 817970, 1396280, 1635940, 3271880, 5480399, 10960798, 21921596, 27401995, 43843192, 54803990, 109607980, 219215960]

約数ペア:

[(1, 219215960), (2, 109607980), (4, 54803990), (5, 43843192), (8, 27401995), (10, 21921596), (20, 10960798), (40, 5480399), (67, 3271880), (134, 1635940), (157, 1396280), (268, 817970), (314, 698140), (335, 654376), (521, 420760), (536, 408985), (628, 349070), (670, 327188), (785, 279256), (1042, 210380), (1256, 174535), (1340, 163594), (1570, 139628), (2084, 105190), (2605, 84152), (2680, 81797), (3140, 69814), (4168, 52595), (5210, 42076), (6280, 34907), (10420, 21038), (10519, 20840)]