189415720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{563}}^1\times {\mathrm{647}}^1$

素因数の和:1234

約数の個数: 64

約数和(自身を含む): 460494720

約数和(自身を除く): 271079000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 563, 647, 1126, 1294, 2252, 2588, 2815, 3235, 4504, 5176, 5630, 6470, 7319, 8411, 11260, 12940, 14638, 16822, 22520, 25880, 29276, 33644, 36595, 42055, 58552, 67288, 73190, 84110, 146380, 168220, 292760, 336440, 364261, 728522, 1457044, 1821305, 2914088, 3642610, 4735393, 7285220, 9470786, 14570440, 18941572, 23676965, 37883144, 47353930, 94707860, 189415720]

約数ペア:

[(1, 189415720), (2, 94707860), (4, 47353930), (5, 37883144), (8, 23676965), (10, 18941572), (13, 14570440), (20, 9470786), (26, 7285220), (40, 4735393), (52, 3642610), (65, 2914088), (104, 1821305), (130, 1457044), (260, 728522), (520, 364261), (563, 336440), (647, 292760), (1126, 168220), (1294, 146380), (2252, 84110), (2588, 73190), (2815, 67288), (3235, 58552), (4504, 42055), (5176, 36595), (5630, 33644), (6470, 29276), (7319, 25880), (8411, 22520), (11260, 16822), (12940, 14638)]