78752440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{563}}^1$

素因数の和:856

約数の個数: 64

約数和(自身を含む): 191872800

約数和(自身を除く): 113120360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 269, 520, 538, 563, 1076, 1126, 1345, 2152, 2252, 2690, 2815, 3497, 4504, 5380, 5630, 6994, 7319, 10760, 11260, 13988, 14638, 17485, 22520, 27976, 29276, 34970, 36595, 58552, 69940, 73190, 139880, 146380, 151447, 292760, 302894, 605788, 757235, 1211576, 1514470, 1968811, 3028940, 3937622, 6057880, 7875244, 9844055, 15750488, 19688110, 39376220, 78752440]

約数ペア:

[(1, 78752440), (2, 39376220), (4, 19688110), (5, 15750488), (8, 9844055), (10, 7875244), (13, 6057880), (20, 3937622), (26, 3028940), (40, 1968811), (52, 1514470), (65, 1211576), (104, 757235), (130, 605788), (260, 302894), (269, 292760), (520, 151447), (538, 146380), (563, 139880), (1076, 73190), (1126, 69940), (1345, 58552), (2152, 36595), (2252, 34970), (2690, 29276), (2815, 27976), (3497, 22520), (4504, 17485), (5380, 14638), (5630, 13988), (6994, 11260), (7319, 10760)]