19636240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:344

約数の個数: 80

約数和(自身を含む): 49996800

約数和(自身を除く): 30360560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 79, 80, 104, 130, 158, 208, 239, 260, 316, 395, 478, 520, 632, 790, 956, 1027, 1040, 1195, 1264, 1580, 1912, 2054, 2390, 3107, 3160, 3824, 4108, 4780, 5135, 6214, 6320, 8216, 9560, 10270, 12428, 15535, 16432, 18881, 19120, 20540, 24856, 31070, 37762, 41080, 49712, 62140, 75524, 82160, 94405, 124280, 151048, 188810, 245453, 248560, 302096, 377620, 490906, 755240, 981812, 1227265, 1510480, 1963624, 2454530, 3927248, 4909060, 9818120, 19636240]

約数ペア:

[(1, 19636240), (2, 9818120), (4, 4909060), (5, 3927248), (8, 2454530), (10, 1963624), (13, 1510480), (16, 1227265), (20, 981812), (26, 755240), (40, 490906), (52, 377620), (65, 302096), (79, 248560), (80, 245453), (104, 188810), (130, 151048), (158, 124280), (208, 94405), (239, 82160), (260, 75524), (316, 62140), (395, 49712), (478, 41080), (520, 37762), (632, 31070), (790, 24856), (956, 20540), (1027, 19120), (1040, 18881), (1195, 16432), (1264, 15535), (1580, 12428), (1912, 10270), (2054, 9560), (2390, 8216), (3107, 6320), (3160, 6214), (3824, 5135), (4108, 4780)]