20037290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{227}}^1$

素因数の和:351

約数の個数: 64

約数和(自身を含む): 45045504

約数和(自身を除く): 25008214

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 97, 130, 182, 194, 227, 454, 455, 485, 679, 910, 970, 1135, 1261, 1358, 1589, 2270, 2522, 2951, 3178, 3395, 5902, 6305, 6790, 7945, 8827, 12610, 14755, 15890, 17654, 20657, 22019, 29510, 41314, 44038, 44135, 88270, 103285, 110095, 154133, 206570, 220190, 286247, 308266, 572494, 770665, 1431235, 1541330, 2003729, 2862470, 4007458, 10018645, 20037290]

約数ペア:

[(1, 20037290), (2, 10018645), (5, 4007458), (7, 2862470), (10, 2003729), (13, 1541330), (14, 1431235), (26, 770665), (35, 572494), (65, 308266), (70, 286247), (91, 220190), (97, 206570), (130, 154133), (182, 110095), (194, 103285), (227, 88270), (454, 44135), (455, 44038), (485, 41314), (679, 29510), (910, 22019), (970, 20657), (1135, 17654), (1261, 15890), (1358, 14755), (1589, 12610), (2270, 8827), (2522, 7945), (2951, 6790), (3178, 6305), (3395, 5902)]