78489320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21563}}^1$

素因数の和:21594

約数の個数: 64

約数和(自身を含む): 217365120

約数和(自身を除く): 138875800

約数列:

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

約数ペア:

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