905240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:132

約数の個数: 64

約数和(自身を含む): 2410560

約数和(自身を除く): 1505320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 61, 70, 106, 122, 140, 212, 244, 265, 280, 305, 371, 424, 427, 488, 530, 610, 742, 854, 1060, 1220, 1484, 1708, 1855, 2120, 2135, 2440, 2968, 3233, 3416, 3710, 4270, 6466, 7420, 8540, 12932, 14840, 16165, 17080, 22631, 25864, 32330, 45262, 64660, 90524, 113155, 129320, 181048, 226310, 452620, 905240]

約数ペア:

[(1, 905240), (2, 452620), (4, 226310), (5, 181048), (7, 129320), (8, 113155), (10, 90524), (14, 64660), (20, 45262), (28, 32330), (35, 25864), (40, 22631), (53, 17080), (56, 16165), (61, 14840), (70, 12932), (106, 8540), (122, 7420), (140, 6466), (212, 4270), (244, 3710), (265, 3416), (280, 3233), (305, 2968), (371, 2440), (424, 2135), (427, 2120), (488, 1855), (530, 1708), (610, 1484), (742, 1220), (854, 1060)]