80493980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1091}}^1$

素因数の和:1155

約数の個数: 96

約数和(自身を含む): 211341312

約数和(自身を除く): 130847332

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 31, 34, 35, 62, 68, 70, 85, 119, 124, 140, 155, 170, 217, 238, 310, 340, 434, 476, 527, 595, 620, 868, 1054, 1085, 1091, 1190, 2108, 2170, 2182, 2380, 2635, 3689, 4340, 4364, 5270, 5455, 7378, 7637, 10540, 10910, 14756, 15274, 18445, 18547, 21820, 30548, 33821, 36890, 37094, 38185, 67642, 73780, 74188, 76370, 92735, 129829, 135284, 152740, 169105, 185470, 236747, 259658, 338210, 370940, 473494, 519316, 574957, 649145, 676420, 946988, 1149914, 1183735, 1298290, 2299828, 2367470, 2596580, 2874785, 4024699, 4734940, 5749570, 8049398, 11499140, 16098796, 20123495, 40246990, 80493980]

約数ペア:

[(1, 80493980), (2, 40246990), (4, 20123495), (5, 16098796), (7, 11499140), (10, 8049398), (14, 5749570), (17, 4734940), (20, 4024699), (28, 2874785), (31, 2596580), (34, 2367470), (35, 2299828), (62, 1298290), (68, 1183735), (70, 1149914), (85, 946988), (119, 676420), (124, 649145), (140, 574957), (155, 519316), (170, 473494), (217, 370940), (238, 338210), (310, 259658), (340, 236747), (434, 185470), (476, 169105), (527, 152740), (595, 135284), (620, 129829), (868, 92735), (1054, 76370), (1085, 74188), (1091, 73780), (1190, 67642), (2108, 38185), (2170, 37094), (2182, 36890), (2380, 33821), (2635, 30548), (3689, 21820), (4340, 18547), (4364, 18445), (5270, 15274), (5455, 14756), (7378, 10910), (7637, 10540)]