17711980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{563}}^1$

素因数の和:607

約数の個数: 72

約数和(自身を含む): 44107056

約数和(自身を除く): 26395076

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 121, 130, 143, 220, 242, 260, 286, 484, 563, 572, 605, 715, 1126, 1210, 1430, 1573, 2252, 2420, 2815, 2860, 3146, 5630, 6193, 6292, 7319, 7865, 11260, 12386, 14638, 15730, 24772, 29276, 30965, 31460, 36595, 61930, 68123, 73190, 80509, 123860, 136246, 146380, 161018, 272492, 322036, 340615, 402545, 681230, 805090, 885599, 1362460, 1610180, 1771198, 3542396, 4427995, 8855990, 17711980]

約数ペア:

[(1, 17711980), (2, 8855990), (4, 4427995), (5, 3542396), (10, 1771198), (11, 1610180), (13, 1362460), (20, 885599), (22, 805090), (26, 681230), (44, 402545), (52, 340615), (55, 322036), (65, 272492), (110, 161018), (121, 146380), (130, 136246), (143, 123860), (220, 80509), (242, 73190), (260, 68123), (286, 61930), (484, 36595), (563, 31460), (572, 30965), (605, 29276), (715, 24772), (1126, 15730), (1210, 14638), (1430, 12386), (1573, 11260), (2252, 7865), (2420, 7319), (2815, 6292), (2860, 6193), (3146, 5630)]