72813580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{1297}}^1$

素因数の和:1714

約数の個数: 48

約数和(自身を含む): 175323456

約数和(自身を除く): 102509876

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 401, 802, 1297, 1604, 2005, 2594, 2807, 4010, 5188, 5614, 6485, 8020, 9079, 11228, 12970, 14035, 18158, 25940, 28070, 36316, 45395, 56140, 90790, 181580, 520097, 1040194, 2080388, 2600485, 3640679, 5200970, 7281358, 10401940, 14562716, 18203395, 36406790, 72813580]

約数ペア:

[(1, 72813580), (2, 36406790), (4, 18203395), (5, 14562716), (7, 10401940), (10, 7281358), (14, 5200970), (20, 3640679), (28, 2600485), (35, 2080388), (70, 1040194), (140, 520097), (401, 181580), (802, 90790), (1297, 56140), (1604, 45395), (2005, 36316), (2594, 28070), (2807, 25940), (4010, 18158), (5188, 14035), (5614, 12970), (6485, 11228), (8020, 9079)]