71303020

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{491}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 153988128

約数和(自身を除く): 82685108

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 137, 212, 265, 274, 491, 530, 548, 685, 982, 1060, 1370, 1964, 2455, 2740, 4910, 7261, 9820, 14522, 26023, 29044, 36305, 52046, 67267, 72610, 104092, 130115, 134534, 145220, 260230, 269068, 336335, 520460, 672670, 1345340, 3565151, 7130302, 14260604, 17825755, 35651510, 71303020]

約数ペア:

[(1, 71303020), (2, 35651510), (4, 17825755), (5, 14260604), (10, 7130302), (20, 3565151), (53, 1345340), (106, 672670), (137, 520460), (212, 336335), (265, 269068), (274, 260230), (491, 145220), (530, 134534), (548, 130115), (685, 104092), (982, 72610), (1060, 67267), (1370, 52046), (1964, 36305), (2455, 29044), (2740, 26023), (4910, 14522), (7261, 9820)]