349701820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{563}}^1\times {\mathrm{2389}}^1$

素因数の和:2974

約数の個数: 48

約数和(自身を含む): 792600480

約数和(自身を除く): 442898660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 563, 1126, 2252, 2389, 2815, 4778, 5630, 7319, 9556, 11260, 11945, 14638, 23890, 29276, 31057, 36595, 47780, 62114, 73190, 124228, 146380, 155285, 310570, 621140, 1345007, 2690014, 5380028, 6725035, 13450070, 17485091, 26900140, 34970182, 69940364, 87425455, 174850910, 349701820]

約数ペア:

[(1, 349701820), (2, 174850910), (4, 87425455), (5, 69940364), (10, 34970182), (13, 26900140), (20, 17485091), (26, 13450070), (52, 6725035), (65, 5380028), (130, 2690014), (260, 1345007), (563, 621140), (1126, 310570), (2252, 155285), (2389, 146380), (2815, 124228), (4778, 73190), (5630, 62114), (7319, 47780), (9556, 36595), (11260, 31057), (11945, 29276), (14638, 23890)]