18780580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{607}}^1$

素因数の和:653

約数の個数: 96

約数和(自身を含む): 51480576

約数和(自身を除く): 32699996

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 17, 20, 26, 28, 34, 35, 52, 65, 68, 70, 85, 91, 119, 130, 140, 170, 182, 221, 238, 260, 340, 364, 442, 455, 476, 595, 607, 884, 910, 1105, 1190, 1214, 1547, 1820, 2210, 2380, 2428, 3035, 3094, 4249, 4420, 6070, 6188, 7735, 7891, 8498, 10319, 12140, 15470, 15782, 16996, 20638, 21245, 30940, 31564, 39455, 41276, 42490, 51595, 55237, 72233, 78910, 84980, 103190, 110474, 134147, 144466, 157820, 206380, 220948, 268294, 276185, 288932, 361165, 536588, 552370, 670735, 722330, 939029, 1104740, 1341470, 1444660, 1878058, 2682940, 3756116, 4695145, 9390290, 18780580]

約数ペア:

[(1, 18780580), (2, 9390290), (4, 4695145), (5, 3756116), (7, 2682940), (10, 1878058), (13, 1444660), (14, 1341470), (17, 1104740), (20, 939029), (26, 722330), (28, 670735), (34, 552370), (35, 536588), (52, 361165), (65, 288932), (68, 276185), (70, 268294), (85, 220948), (91, 206380), (119, 157820), (130, 144466), (140, 134147), (170, 110474), (182, 103190), (221, 84980), (238, 78910), (260, 72233), (340, 55237), (364, 51595), (442, 42490), (455, 41276), (476, 39455), (595, 31564), (607, 30940), (884, 21245), (910, 20638), (1105, 16996), (1190, 15782), (1214, 15470), (1547, 12140), (1820, 10319), (2210, 8498), (2380, 7891), (2428, 7735), (3035, 6188), (3094, 6070), (4249, 4420)]