238841720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{1091}}^1$

素因数の和:1536

約数の個数: 64

約数和(自身を含む): 580638240

約数和(自身を除く): 341796520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 421, 520, 842, 1091, 1684, 2105, 2182, 3368, 4210, 4364, 5455, 5473, 8420, 8728, 10910, 10946, 14183, 16840, 21820, 21892, 27365, 28366, 43640, 43784, 54730, 56732, 70915, 109460, 113464, 141830, 218920, 283660, 459311, 567320, 918622, 1837244, 2296555, 3674488, 4593110, 5971043, 9186220, 11942086, 18372440, 23884172, 29855215, 47768344, 59710430, 119420860, 238841720]

約数ペア:

[(1, 238841720), (2, 119420860), (4, 59710430), (5, 47768344), (8, 29855215), (10, 23884172), (13, 18372440), (20, 11942086), (26, 9186220), (40, 5971043), (52, 4593110), (65, 3674488), (104, 2296555), (130, 1837244), (260, 918622), (421, 567320), (520, 459311), (842, 283660), (1091, 218920), (1684, 141830), (2105, 113464), (2182, 109460), (3368, 70915), (4210, 56732), (4364, 54730), (5455, 43784), (5473, 43640), (8420, 28366), (8728, 27365), (10910, 21892), (10946, 21820), (14183, 16840)]