311265780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{2239}}^1$

素因数の和:2589

約数の個数: 96

約数和(自身を含む): 999505920

約数和(自身を除く): 688240140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 331, 420, 662, 993, 1324, 1655, 1986, 2239, 2317, 3310, 3972, 4478, 4634, 4965, 6620, 6717, 6951, 8956, 9268, 9930, 11195, 11585, 13434, 13902, 15673, 19860, 22390, 23170, 26868, 27804, 31346, 33585, 34755, 44780, 46340, 47019, 62692, 67170, 69510, 78365, 94038, 134340, 139020, 156730, 188076, 235095, 313460, 470190, 741109, 940380, 1482218, 2223327, 2964436, 3705545, 4446654, 5187763, 7411090, 8893308, 10375526, 11116635, 14822180, 15563289, 20751052, 22233270, 25938815, 31126578, 44466540, 51877630, 62253156, 77816445, 103755260, 155632890, 311265780]

約数ペア:

[(1, 311265780), (2, 155632890), (3, 103755260), (4, 77816445), (5, 62253156), (6, 51877630), (7, 44466540), (10, 31126578), (12, 25938815), (14, 22233270), (15, 20751052), (20, 15563289), (21, 14822180), (28, 11116635), (30, 10375526), (35, 8893308), (42, 7411090), (60, 5187763), (70, 4446654), (84, 3705545), (105, 2964436), (140, 2223327), (210, 1482218), (331, 940380), (420, 741109), (662, 470190), (993, 313460), (1324, 235095), (1655, 188076), (1986, 156730), (2239, 139020), (2317, 134340), (3310, 94038), (3972, 78365), (4478, 69510), (4634, 67170), (4965, 62692), (6620, 47019), (6717, 46340), (6951, 44780), (8956, 34755), (9268, 33585), (9930, 31346), (11195, 27804), (11585, 26868), (13434, 23170), (13902, 22390), (15673, 19860)]