311915268

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{991}}^1\times {\mathrm{1249}}^1$

素因数の和:2257

約数の個数: 72

約数和(自身を含む): 902720000

約数和(自身を除く): 590804732

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 991, 1249, 1982, 2498, 2973, 3747, 3964, 4996, 5946, 6937, 7494, 8743, 8919, 11241, 11892, 13874, 14988, 17486, 17838, 20811, 22482, 26229, 27748, 34972, 35676, 41622, 44964, 52458, 62433, 78687, 83244, 104916, 124866, 157374, 249732, 314748, 1237759, 2475518, 3713277, 4951036, 7426554, 8664313, 11139831, 14853108, 17328626, 22279662, 25992939, 34657252, 44559324, 51985878, 77978817, 103971756, 155957634, 311915268]

約数ペア:

[(1, 311915268), (2, 155957634), (3, 103971756), (4, 77978817), (6, 51985878), (7, 44559324), (9, 34657252), (12, 25992939), (14, 22279662), (18, 17328626), (21, 14853108), (28, 11139831), (36, 8664313), (42, 7426554), (63, 4951036), (84, 3713277), (126, 2475518), (252, 1237759), (991, 314748), (1249, 249732), (1982, 157374), (2498, 124866), (2973, 104916), (3747, 83244), (3964, 78687), (4996, 62433), (5946, 52458), (6937, 44964), (7494, 41622), (8743, 35676), (8919, 34972), (11241, 27748), (11892, 26229), (13874, 22482), (14988, 20811), (17486, 17838)]