31387755

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1$

素因数の和:396

約数の個数: 64

約数和(自身を含む): 61544448

約数和(自身を除く): 30156693

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 41, 69, 105, 115, 123, 161, 205, 287, 317, 345, 483, 615, 805, 861, 943, 951, 1435, 1585, 2219, 2415, 2829, 4305, 4715, 4755, 6601, 6657, 7291, 11095, 12997, 14145, 19803, 21873, 33005, 33285, 36455, 38991, 51037, 64985, 90979, 99015, 109365, 153111, 194955, 255185, 272937, 298931, 454895, 765555, 896793, 1364685, 1494655, 2092517, 4483965, 6277551, 10462585, 31387755]

約数ペア:

[(1, 31387755), (3, 10462585), (5, 6277551), (7, 4483965), (15, 2092517), (21, 1494655), (23, 1364685), (35, 896793), (41, 765555), (69, 454895), (105, 298931), (115, 272937), (123, 255185), (161, 194955), (205, 153111), (287, 109365), (317, 99015), (345, 90979), (483, 64985), (615, 51037), (805, 38991), (861, 36455), (943, 33285), (951, 33005), (1435, 21873), (1585, 19803), (2219, 14145), (2415, 12997), (2829, 11095), (4305, 7291), (4715, 6657), (4755, 6601)]