156978640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21563}}^1$

素因数の和:21596

約数の個数: 80

約数和(自身を含む): 449221248

約数和(自身を除く): 292242608

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 21563, 43126, 86252, 107815, 150941, 172504, 215630, 280319, 301882, 345008, 431260, 560638, 603764, 754705, 862520, 1121276, 1207528, 1401595, 1509410, 1725040, 1962233, 2242552, 2415056, 2803190, 3018820, 3924466, 4485104, 5606380, 6037640, 7848932, 9811165, 11212760, 12075280, 15697864, 19622330, 22425520, 31395728, 39244660, 78489320, 156978640]

約数ペア:

[(1, 156978640), (2, 78489320), (4, 39244660), (5, 31395728), (7, 22425520), (8, 19622330), (10, 15697864), (13, 12075280), (14, 11212760), (16, 9811165), (20, 7848932), (26, 6037640), (28, 5606380), (35, 4485104), (40, 3924466), (52, 3018820), (56, 2803190), (65, 2415056), (70, 2242552), (80, 1962233), (91, 1725040), (104, 1509410), (112, 1401595), (130, 1207528), (140, 1121276), (182, 862520), (208, 754705), (260, 603764), (280, 560638), (364, 431260), (455, 345008), (520, 301882), (560, 280319), (728, 215630), (910, 172504), (1040, 150941), (1456, 107815), (1820, 86252), (3640, 43126), (7280, 21563)]