74138920

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 171097920

約数和(自身を除く): 96959000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 137, 163, 166, 274, 326, 332, 415, 548, 652, 664, 685, 815, 830, 1096, 1304, 1370, 1630, 1660, 2740, 3260, 3320, 5480, 6520, 11371, 13529, 22331, 22742, 27058, 44662, 45484, 54116, 56855, 67645, 89324, 90968, 108232, 111655, 113710, 135290, 178648, 223310, 227420, 270580, 446620, 454840, 541160, 893240, 1853473, 3706946, 7413892, 9267365, 14827784, 18534730, 37069460, 74138920]

約数ペア:

[(1, 74138920), (2, 37069460), (4, 18534730), (5, 14827784), (8, 9267365), (10, 7413892), (20, 3706946), (40, 1853473), (83, 893240), (137, 541160), (163, 454840), (166, 446620), (274, 270580), (326, 227420), (332, 223310), (415, 178648), (548, 135290), (652, 113710), (664, 111655), (685, 108232), (815, 90968), (830, 89324), (1096, 67645), (1304, 56855), (1370, 54116), (1630, 45484), (1660, 44662), (2740, 27058), (3260, 22742), (3320, 22331), (5480, 13529), (6520, 11371)]