31980690

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{16921}}^1$

素因数の和:16944

約数の個数: 64

約数和(自身を含む): 97470720

約数和(自身を除く): 65490030

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 16921, 33842, 50763, 84605, 101526, 118447, 152289, 169210, 236894, 253815, 304578, 355341, 456867, 507630, 592235, 710682, 761445, 913734, 1066023, 1184470, 1522890, 1776705, 2132046, 2284335, 3198069, 3553410, 4568670, 5330115, 6396138, 10660230, 15990345, 31980690]

約数ペア:

[(1, 31980690), (2, 15990345), (3, 10660230), (5, 6396138), (6, 5330115), (7, 4568670), (9, 3553410), (10, 3198069), (14, 2284335), (15, 2132046), (18, 1776705), (21, 1522890), (27, 1184470), (30, 1066023), (35, 913734), (42, 761445), (45, 710682), (54, 592235), (63, 507630), (70, 456867), (90, 355341), (105, 304578), (126, 253815), (135, 236894), (189, 169210), (210, 152289), (270, 118447), (315, 101526), (378, 84605), (630, 50763), (945, 33842), (1890, 16921)]