613040

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:189

約数の個数: 40

約数和(自身を含む): 1458240

約数和(自身を除く): 845200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 97, 158, 194, 316, 388, 395, 485, 632, 776, 790, 970, 1264, 1552, 1580, 1940, 3160, 3880, 6320, 7663, 7760, 15326, 30652, 38315, 61304, 76630, 122608, 153260, 306520, 613040]

約数ペア:

[(1, 613040), (2, 306520), (4, 153260), (5, 122608), (8, 76630), (10, 61304), (16, 38315), (20, 30652), (40, 15326), (79, 7760), (80, 7663), (97, 6320), (158, 3880), (194, 3160), (316, 1940), (388, 1580), (395, 1552), (485, 1264), (632, 970), (776, 790)]