18557970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:379

約数の個数: 64

約数和(自身を含む): 46811520

約数和(自身を除く): 28253550

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 83, 87, 145, 166, 174, 249, 257, 290, 415, 435, 498, 514, 771, 830, 870, 1245, 1285, 1542, 2407, 2490, 2570, 3855, 4814, 7221, 7453, 7710, 12035, 14442, 14906, 21331, 22359, 24070, 36105, 37265, 42662, 44718, 63993, 72210, 74530, 106655, 111795, 127986, 213310, 223590, 319965, 618599, 639930, 1237198, 1855797, 3092995, 3711594, 6185990, 9278985, 18557970]

約数ペア:

[(1, 18557970), (2, 9278985), (3, 6185990), (5, 3711594), (6, 3092995), (10, 1855797), (15, 1237198), (29, 639930), (30, 618599), (58, 319965), (83, 223590), (87, 213310), (145, 127986), (166, 111795), (174, 106655), (249, 74530), (257, 72210), (290, 63993), (415, 44718), (435, 42662), (498, 37265), (514, 36105), (771, 24070), (830, 22359), (870, 21331), (1245, 14906), (1285, 14442), (1542, 12035), (2407, 7710), (2490, 7453), (2570, 7221), (3855, 4814)]