18509790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1531}}^1$

素因数の和:1585

約数の個数: 64

約数和(自身を含む): 49416192

約数和(自身を除く): 30906402

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 31, 39, 62, 65, 78, 93, 130, 155, 186, 195, 310, 390, 403, 465, 806, 930, 1209, 1531, 2015, 2418, 3062, 4030, 4593, 6045, 7655, 9186, 12090, 15310, 19903, 22965, 39806, 45930, 47461, 59709, 94922, 99515, 119418, 142383, 199030, 237305, 284766, 298545, 474610, 597090, 616993, 711915, 1233986, 1423830, 1850979, 3084965, 3701958, 6169930, 9254895, 18509790]

約数ペア:

[(1, 18509790), (2, 9254895), (3, 6169930), (5, 3701958), (6, 3084965), (10, 1850979), (13, 1423830), (15, 1233986), (26, 711915), (30, 616993), (31, 597090), (39, 474610), (62, 298545), (65, 284766), (78, 237305), (93, 199030), (130, 142383), (155, 119418), (186, 99515), (195, 94922), (310, 59709), (390, 47461), (403, 45930), (465, 39806), (806, 22965), (930, 19903), (1209, 15310), (1531, 12090), (2015, 9186), (2418, 7655), (3062, 6045), (4030, 4593)]