219062440

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{17497}}^1$

素因数の和:17821

約数の個数: 32

約数和(自身を含む): 494493480

約数和(自身を除く): 275431040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 6260, 12520, 17497, 34994, 69988, 87485, 139976, 174970, 349940, 699880, 5476561, 10953122, 21906244, 27382805, 43812488, 54765610, 109531220, 219062440]

約数ペア:

[(1, 219062440), (2, 109531220), (4, 54765610), (5, 43812488), (8, 27382805), (10, 21906244), (20, 10953122), (40, 5476561), (313, 699880), (626, 349940), (1252, 174970), (1565, 139976), (2504, 87485), (3130, 69988), (6260, 34994), (12520, 17497)]