298974140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{1663}}^1$

素因数の和:1862

約数の個数: 48

約数和(自身を含む): 641571840

約数和(自身を除く): 342597700

約数列:

[1, 2, 4, 5, 10, 20, 89, 101, 178, 202, 356, 404, 445, 505, 890, 1010, 1663, 1780, 2020, 3326, 6652, 8315, 8989, 16630, 17978, 33260, 35956, 44945, 89890, 148007, 167963, 179780, 296014, 335926, 592028, 671852, 740035, 839815, 1480070, 1679630, 2960140, 3359260, 14948707, 29897414, 59794828, 74743535, 149487070, 298974140]

約数ペア:

[(1, 298974140), (2, 149487070), (4, 74743535), (5, 59794828), (10, 29897414), (20, 14948707), (89, 3359260), (101, 2960140), (178, 1679630), (202, 1480070), (356, 839815), (404, 740035), (445, 671852), (505, 592028), (890, 335926), (1010, 296014), (1663, 179780), (1780, 167963), (2020, 148007), (3326, 89890), (6652, 44945), (8315, 35956), (8989, 33260), (16630, 17978)]