77654920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{1031}}^1$

素因数の和:1318

約数の個数: 64

約数和(自身を含む): 200620800

約数和(自身を除く): 122965880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 269, 280, 538, 1031, 1076, 1345, 1883, 2062, 2152, 2690, 3766, 4124, 5155, 5380, 7217, 7532, 8248, 9415, 10310, 10760, 14434, 15064, 18830, 20620, 28868, 36085, 37660, 41240, 57736, 72170, 75320, 144340, 277339, 288680, 554678, 1109356, 1386695, 1941373, 2218712, 2773390, 3882746, 5546780, 7765492, 9706865, 11093560, 15530984, 19413730, 38827460, 77654920]

約数ペア:

[(1, 77654920), (2, 38827460), (4, 19413730), (5, 15530984), (7, 11093560), (8, 9706865), (10, 7765492), (14, 5546780), (20, 3882746), (28, 2773390), (35, 2218712), (40, 1941373), (56, 1386695), (70, 1109356), (140, 554678), (269, 288680), (280, 277339), (538, 144340), (1031, 75320), (1076, 72170), (1345, 57736), (1883, 41240), (2062, 37660), (2152, 36085), (2690, 28868), (3766, 20620), (4124, 18830), (5155, 15064), (5380, 14434), (7217, 10760), (7532, 10310), (8248, 9415)]