3977897720

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{617}}^1\times {\mathrm{1811}}^1$

素因数の和:2528

約数の個数: 64

約数和(自身を含む): 9070509600

約数和(自身を除く): 5092611880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 617, 712, 890, 1234, 1780, 1811, 2468, 3085, 3560, 3622, 4936, 6170, 7244, 9055, 12340, 14488, 18110, 24680, 36220, 54913, 72440, 109826, 161179, 219652, 274565, 322358, 439304, 549130, 644716, 805895, 1098260, 1117387, 1289432, 1611790, 2196520, 2234774, 3223580, 4469548, 5586935, 6447160, 8939096, 11173870, 22347740, 44695480, 99447443, 198894886, 397789772, 497237215, 795579544, 994474430, 1988948860, 3977897720]

約数ペア:

[(1, 3977897720), (2, 1988948860), (4, 994474430), (5, 795579544), (8, 497237215), (10, 397789772), (20, 198894886), (40, 99447443), (89, 44695480), (178, 22347740), (356, 11173870), (445, 8939096), (617, 6447160), (712, 5586935), (890, 4469548), (1234, 3223580), (1780, 2234774), (1811, 2196520), (2468, 1611790), (3085, 1289432), (3560, 1117387), (3622, 1098260), (4936, 805895), (6170, 644716), (7244, 549130), (9055, 439304), (12340, 322358), (14488, 274565), (18110, 219652), (24680, 161179), (36220, 109826), (54913, 72440)]