20047508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 40360320

約数和(自身を除く): 20312812

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 103, 197, 206, 247, 394, 412, 494, 788, 988, 1339, 1957, 2561, 2678, 3743, 3914, 5122, 5356, 7486, 7828, 10244, 14972, 20291, 25441, 40582, 48659, 50882, 81164, 97318, 101764, 194636, 263783, 385529, 527566, 771058, 1055132, 1542116, 5011877, 10023754, 20047508]

約数ペア:

[(1, 20047508), (2, 10023754), (4, 5011877), (13, 1542116), (19, 1055132), (26, 771058), (38, 527566), (52, 385529), (76, 263783), (103, 194636), (197, 101764), (206, 97318), (247, 81164), (394, 50882), (412, 48659), (494, 40582), (788, 25441), (988, 20291), (1339, 14972), (1957, 10244), (2561, 7828), (2678, 7486), (3743, 5356), (3914, 5122)]