7821270

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{47}}^1$

素因数の和:146

約数の個数: 72

約数和(自身を含む): 21262176

約数和(自身を除く): 13440906

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 47, 86, 90, 94, 129, 141, 215, 235, 258, 282, 387, 423, 430, 470, 645, 705, 774, 846, 1290, 1410, 1849, 1935, 2021, 2115, 3698, 3870, 4042, 4230, 5547, 6063, 9245, 10105, 11094, 12126, 16641, 18189, 18490, 20210, 27735, 30315, 33282, 36378, 55470, 60630, 83205, 86903, 90945, 166410, 173806, 181890, 260709, 434515, 521418, 782127, 869030, 1303545, 1564254, 2607090, 3910635, 7821270]

約数ペア:

[(1, 7821270), (2, 3910635), (3, 2607090), (5, 1564254), (6, 1303545), (9, 869030), (10, 782127), (15, 521418), (18, 434515), (30, 260709), (43, 181890), (45, 173806), (47, 166410), (86, 90945), (90, 86903), (94, 83205), (129, 60630), (141, 55470), (215, 36378), (235, 33282), (258, 30315), (282, 27735), (387, 20210), (423, 18490), (430, 18189), (470, 16641), (645, 12126), (705, 11094), (774, 10105), (846, 9245), (1290, 6063), (1410, 5547), (1849, 4230), (1935, 4042), (2021, 3870), (2115, 3698)]