90805890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{2389}}^1$

素因数の和:2587

約数の個数: 64

約数和(自身を含む): 250548480

約数和(自身を除く): 159742590

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 181, 210, 362, 543, 905, 1086, 1267, 1810, 2389, 2534, 2715, 3801, 4778, 5430, 6335, 7167, 7602, 11945, 12670, 14334, 16723, 19005, 23890, 33446, 35835, 38010, 50169, 71670, 83615, 100338, 167230, 250845, 432409, 501690, 864818, 1297227, 2162045, 2594454, 3026863, 4324090, 6053726, 6486135, 9080589, 12972270, 15134315, 18161178, 30268630, 45402945, 90805890]

約数ペア:

[(1, 90805890), (2, 45402945), (3, 30268630), (5, 18161178), (6, 15134315), (7, 12972270), (10, 9080589), (14, 6486135), (15, 6053726), (21, 4324090), (30, 3026863), (35, 2594454), (42, 2162045), (70, 1297227), (105, 864818), (181, 501690), (210, 432409), (362, 250845), (543, 167230), (905, 100338), (1086, 83615), (1267, 71670), (1810, 50169), (2389, 38010), (2534, 35835), (2715, 33446), (3801, 23890), (4778, 19005), (5430, 16723), (6335, 14334), (7167, 12670), (7602, 11945)]