989657890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{1039}}^1$

素因数の和:1507

約数の個数: 64

約数和(自身を含む): 2037934080

約数和(自身を除く): 1048276190

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 431, 442, 862, 1039, 1105, 2078, 2155, 2210, 4310, 5195, 5603, 7327, 10390, 11206, 13507, 14654, 17663, 27014, 28015, 35326, 36635, 56030, 67535, 73270, 88315, 95251, 135070, 176630, 190502, 229619, 447809, 459238, 476255, 895618, 952510, 1148095, 2239045, 2296190, 4478090, 5821517, 7612753, 11643034, 15225506, 29107585, 38063765, 58215170, 76127530, 98965789, 197931578, 494828945, 989657890]

約数ペア:

[(1, 989657890), (2, 494828945), (5, 197931578), (10, 98965789), (13, 76127530), (17, 58215170), (26, 38063765), (34, 29107585), (65, 15225506), (85, 11643034), (130, 7612753), (170, 5821517), (221, 4478090), (431, 2296190), (442, 2239045), (862, 1148095), (1039, 952510), (1105, 895618), (2078, 476255), (2155, 459238), (2210, 447809), (4310, 229619), (5195, 190502), (5603, 176630), (7327, 135070), (10390, 95251), (11206, 88315), (13507, 73270), (14654, 67535), (17663, 56030), (27014, 36635), (28015, 35326)]