278992922

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{659}}^1\times {\mathrm{857}}^1$

素因数の和:1550

約数の個数: 32

約数和(自身を含む): 475675200

約数和(自身を除く): 196682278

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 659, 857, 1318, 1714, 8567, 11141, 12521, 16283, 17134, 22282, 25042, 32566, 162773, 211679, 325546, 423358, 564763, 1129526, 7341919, 10730497, 14683838, 21460994, 139496461, 278992922]

約数ペア:

[(1, 278992922), (2, 139496461), (13, 21460994), (19, 14683838), (26, 10730497), (38, 7341919), (247, 1129526), (494, 564763), (659, 423358), (857, 325546), (1318, 211679), (1714, 162773), (8567, 32566), (11141, 25042), (12521, 22282), (16283, 17134)]