90790140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{30881}}^1$

素因数の和:30907

約数の個数: 72

約数和(自身を含む): 295726032

約数和(自身を除く): 204935892

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 30881, 61762, 92643, 123524, 154405, 185286, 216167, 308810, 370572, 432334, 463215, 617620, 648501, 864668, 926430, 1080835, 1297002, 1513169, 1852860, 2161670, 2594004, 3026338, 3242505, 4323340, 4539507, 6052676, 6485010, 7565845, 9079014, 12970020, 15131690, 18158028, 22697535, 30263380, 45395070, 90790140]

約数ペア:

[(1, 90790140), (2, 45395070), (3, 30263380), (4, 22697535), (5, 18158028), (6, 15131690), (7, 12970020), (10, 9079014), (12, 7565845), (14, 6485010), (15, 6052676), (20, 4539507), (21, 4323340), (28, 3242505), (30, 3026338), (35, 2594004), (42, 2161670), (49, 1852860), (60, 1513169), (70, 1297002), (84, 1080835), (98, 926430), (105, 864668), (140, 648501), (147, 617620), (196, 463215), (210, 432334), (245, 370572), (294, 308810), (420, 216167), (490, 185286), (588, 154405), (735, 123524), (980, 92643), (1470, 61762), (2940, 30881)]