81716635

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{563}}^1$

素因数の和:628

約数の個数: 64

約数和(自身を含む): 136442880

約数和(自身を除く): 54726245

約数列:

[1, 5, 7, 11, 13, 29, 35, 55, 65, 77, 91, 143, 145, 203, 319, 377, 385, 455, 563, 715, 1001, 1015, 1595, 1885, 2233, 2639, 2815, 3941, 4147, 5005, 6193, 7319, 11165, 13195, 16327, 19705, 20735, 29029, 30965, 36595, 43351, 51233, 80509, 81635, 114289, 145145, 179597, 212251, 216755, 256165, 402545, 563563, 571445, 897985, 1061255, 1257179, 1485757, 2334761, 2817815, 6285895, 7428785, 11673805, 16343327, 81716635]

約数ペア:

[(1, 81716635), (5, 16343327), (7, 11673805), (11, 7428785), (13, 6285895), (29, 2817815), (35, 2334761), (55, 1485757), (65, 1257179), (77, 1061255), (91, 897985), (143, 571445), (145, 563563), (203, 402545), (319, 256165), (377, 216755), (385, 212251), (455, 179597), (563, 145145), (715, 114289), (1001, 81635), (1015, 80509), (1595, 51233), (1885, 43351), (2233, 36595), (2639, 30965), (2815, 29029), (3941, 20735), (4147, 19705), (5005, 16327), (6193, 13195), (7319, 11165)]