4489940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2467}}^1$

素因数の和:2496

約数の個数: 48

約数和(自身を含む): 11609472

約数和(自身を除く): 7119532

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 2467, 4934, 9868, 12335, 17269, 24670, 32071, 34538, 49340, 64142, 69076, 86345, 128284, 160355, 172690, 224497, 320710, 345380, 448994, 641420, 897988, 1122485, 2244970, 4489940]

約数ペア:

[(1, 4489940), (2, 2244970), (4, 1122485), (5, 897988), (7, 641420), (10, 448994), (13, 345380), (14, 320710), (20, 224497), (26, 172690), (28, 160355), (35, 128284), (52, 86345), (65, 69076), (70, 64142), (91, 49340), (130, 34538), (140, 32071), (182, 24670), (260, 17269), (364, 12335), (455, 9868), (910, 4934), (1820, 2467)]