16972020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7253}}^1$

素因数の和:7281

約数の個数: 72

約数和(自身を含む): 55449576

約数和(自身を除く): 38477556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 7253, 14506, 21759, 29012, 36265, 43518, 65277, 72530, 87036, 94289, 108795, 130554, 145060, 188578, 217590, 261108, 282867, 326385, 377156, 435180, 471445, 565734, 652770, 848601, 942890, 1131468, 1305540, 1414335, 1697202, 1885780, 2828670, 3394404, 4243005, 5657340, 8486010, 16972020]

約数ペア:

[(1, 16972020), (2, 8486010), (3, 5657340), (4, 4243005), (5, 3394404), (6, 2828670), (9, 1885780), (10, 1697202), (12, 1414335), (13, 1305540), (15, 1131468), (18, 942890), (20, 848601), (26, 652770), (30, 565734), (36, 471445), (39, 435180), (45, 377156), (52, 326385), (60, 282867), (65, 261108), (78, 217590), (90, 188578), (117, 145060), (130, 130554), (156, 108795), (180, 94289), (195, 87036), (234, 72530), (260, 65277), (390, 43518), (468, 36265), (585, 29012), (780, 21759), (1170, 14506), (2340, 7253)]