306520

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:187

約数の個数: 32

約数和(自身を含む): 705600

約数和(自身を除く): 399080

約数列:

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

約数ペア:

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