77820615

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:461

約数の個数: 64

約数和(自身を含む): 146810880

約数和(自身を除く): 68990265

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 71, 115, 135, 207, 213, 345, 353, 355, 621, 639, 1035, 1059, 1065, 1633, 1765, 1917, 3105, 3177, 3195, 4899, 5295, 8119, 8165, 9531, 9585, 14697, 15885, 24357, 24495, 25063, 40595, 44091, 47655, 73071, 73485, 75189, 121785, 125315, 219213, 220455, 225567, 365355, 375945, 576449, 676701, 1096065, 1127835, 1729347, 2882245, 3383505, 5188041, 8646735, 15564123, 25940205, 77820615]

約数ペア:

[(1, 77820615), (3, 25940205), (5, 15564123), (9, 8646735), (15, 5188041), (23, 3383505), (27, 2882245), (45, 1729347), (69, 1127835), (71, 1096065), (115, 676701), (135, 576449), (207, 375945), (213, 365355), (345, 225567), (353, 220455), (355, 219213), (621, 125315), (639, 121785), (1035, 75189), (1059, 73485), (1065, 73071), (1633, 47655), (1765, 44091), (1917, 40595), (3105, 25063), (3177, 24495), (3195, 24357), (4899, 15885), (5295, 14697), (8119, 9585), (8165, 9531)]