19219070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:321

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 21423490

約数列:

[1, 2, 5, 10, 13, 19, 26, 31, 38, 62, 65, 95, 130, 155, 190, 247, 251, 310, 403, 494, 502, 589, 806, 1178, 1235, 1255, 2015, 2470, 2510, 2945, 3263, 4030, 4769, 5890, 6526, 7657, 7781, 9538, 15314, 15562, 16315, 23845, 32630, 38285, 38905, 47690, 61997, 76570, 77810, 101153, 123994, 147839, 202306, 295678, 309985, 505765, 619970, 739195, 1011530, 1478390, 1921907, 3843814, 9609535, 19219070]

約数ペア:

[(1, 19219070), (2, 9609535), (5, 3843814), (10, 1921907), (13, 1478390), (19, 1011530), (26, 739195), (31, 619970), (38, 505765), (62, 309985), (65, 295678), (95, 202306), (130, 147839), (155, 123994), (190, 101153), (247, 77810), (251, 76570), (310, 61997), (403, 47690), (494, 38905), (502, 38285), (589, 32630), (806, 23845), (1178, 16315), (1235, 15562), (1255, 15314), (2015, 9538), (2470, 7781), (2510, 7657), (2945, 6526), (3263, 5890), (4030, 4769)]