19836280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{941}}^1$

素因数の和:1000

約数の個数: 64

約数和(自身を含む): 48833280

約数和(自身を除く): 28997000

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 85, 124, 136, 155, 170, 248, 310, 340, 527, 620, 680, 941, 1054, 1240, 1882, 2108, 2635, 3764, 4216, 4705, 5270, 7528, 9410, 10540, 15997, 18820, 21080, 29171, 31994, 37640, 58342, 63988, 79985, 116684, 127976, 145855, 159970, 233368, 291710, 319940, 495907, 583420, 639880, 991814, 1166840, 1983628, 2479535, 3967256, 4959070, 9918140, 19836280]

約数ペア:

[(1, 19836280), (2, 9918140), (4, 4959070), (5, 3967256), (8, 2479535), (10, 1983628), (17, 1166840), (20, 991814), (31, 639880), (34, 583420), (40, 495907), (62, 319940), (68, 291710), (85, 233368), (124, 159970), (136, 145855), (155, 127976), (170, 116684), (248, 79985), (310, 63988), (340, 58342), (527, 37640), (620, 31994), (680, 29171), (941, 21080), (1054, 18820), (1240, 15997), (1882, 10540), (2108, 9410), (2635, 7528), (3764, 5270), (4216, 4705)]