7770100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:209

約数の個数: 72

約数和(自身を含む): 18714080

約数和(自身を除く): 10943980

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 43, 50, 52, 65, 86, 100, 130, 139, 172, 215, 260, 278, 325, 430, 556, 559, 650, 695, 860, 1075, 1118, 1300, 1390, 1807, 2150, 2236, 2780, 2795, 3475, 3614, 4300, 5590, 5977, 6950, 7228, 9035, 11180, 11954, 13900, 13975, 18070, 23908, 27950, 29885, 36140, 45175, 55900, 59770, 77701, 90350, 119540, 149425, 155402, 180700, 298850, 310804, 388505, 597700, 777010, 1554020, 1942525, 3885050, 7770100]

約数ペア:

[(1, 7770100), (2, 3885050), (4, 1942525), (5, 1554020), (10, 777010), (13, 597700), (20, 388505), (25, 310804), (26, 298850), (43, 180700), (50, 155402), (52, 149425), (65, 119540), (86, 90350), (100, 77701), (130, 59770), (139, 55900), (172, 45175), (215, 36140), (260, 29885), (278, 27950), (325, 23908), (430, 18070), (556, 13975), (559, 13900), (650, 11954), (695, 11180), (860, 9035), (1075, 7228), (1118, 6950), (1300, 5977), (1390, 5590), (1807, 4300), (2150, 3614), (2236, 3475), (2780, 2795)]