72437960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{258707}}^1$

素因数の和:258725

約数の個数: 32

約数和(自身を含む): 186269760

約数和(自身を除く): 113831800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 258707, 517414, 1034828, 1293535, 1810949, 2069656, 2587070, 3621898, 5174140, 7243796, 9054745, 10348280, 14487592, 18109490, 36218980, 72437960]

約数ペア:

[(1, 72437960), (2, 36218980), (4, 18109490), (5, 14487592), (7, 10348280), (8, 9054745), (10, 7243796), (14, 5174140), (20, 3621898), (28, 2587070), (35, 2069656), (40, 1810949), (56, 1293535), (70, 1034828), (140, 517414), (280, 258707)]