78899720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{4001}}^1$

素因数の和:4058

約数の個数: 64

約数和(自身を含む): 194497200

約数和(自身を除く): 115597480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 29, 34, 40, 58, 68, 85, 116, 136, 145, 170, 232, 290, 340, 493, 580, 680, 986, 1160, 1972, 2465, 3944, 4001, 4930, 8002, 9860, 16004, 19720, 20005, 32008, 40010, 68017, 80020, 116029, 136034, 160040, 232058, 272068, 340085, 464116, 544136, 580145, 680170, 928232, 1160290, 1360340, 1972493, 2320580, 2720680, 3944986, 4641160, 7889972, 9862465, 15779944, 19724930, 39449860, 78899720]

約数ペア:

[(1, 78899720), (2, 39449860), (4, 19724930), (5, 15779944), (8, 9862465), (10, 7889972), (17, 4641160), (20, 3944986), (29, 2720680), (34, 2320580), (40, 1972493), (58, 1360340), (68, 1160290), (85, 928232), (116, 680170), (136, 580145), (145, 544136), (170, 464116), (232, 340085), (290, 272068), (340, 232058), (493, 160040), (580, 136034), (680, 116029), (986, 80020), (1160, 68017), (1972, 40010), (2465, 32008), (3944, 20005), (4001, 19720), (4930, 16004), (8002, 9860)]