18618860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3769}}^1$

素因数の和:3810

約数の個数: 48

約数和(自身を含む): 44335200

約数和(自身を除く): 25716340

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 3769, 4940, 7538, 15076, 18845, 37690, 48997, 71611, 75380, 97994, 143222, 195988, 244985, 286444, 358055, 489970, 716110, 930943, 979940, 1432220, 1861886, 3723772, 4654715, 9309430, 18618860]

約数ペア:

[(1, 18618860), (2, 9309430), (4, 4654715), (5, 3723772), (10, 1861886), (13, 1432220), (19, 979940), (20, 930943), (26, 716110), (38, 489970), (52, 358055), (65, 286444), (76, 244985), (95, 195988), (130, 143222), (190, 97994), (247, 75380), (260, 71611), (380, 48997), (494, 37690), (988, 18845), (1235, 15076), (2470, 7538), (3769, 4940)]