31121415

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:310

約数の個数: 80

約数和(自身を含む): 62935488

約数和(自身を除く): 31814073

約数列:

[1, 3, 5, 9, 13, 15, 23, 27, 39, 45, 65, 69, 81, 115, 117, 135, 195, 207, 257, 299, 345, 351, 405, 585, 621, 771, 897, 1035, 1053, 1285, 1495, 1755, 1863, 2313, 2691, 3105, 3341, 3855, 4485, 5265, 5911, 6939, 8073, 9315, 10023, 11565, 13455, 16705, 17733, 20817, 24219, 29555, 30069, 34695, 40365, 50115, 53199, 76843, 88665, 90207, 104085, 121095, 150345, 159597, 230529, 265995, 270621, 384215, 451035, 478791, 691587, 797985, 1152645, 1353105, 2074761, 2393955, 3457935, 6224283, 10373805, 31121415]

約数ペア:

[(1, 31121415), (3, 10373805), (5, 6224283), (9, 3457935), (13, 2393955), (15, 2074761), (23, 1353105), (27, 1152645), (39, 797985), (45, 691587), (65, 478791), (69, 451035), (81, 384215), (115, 270621), (117, 265995), (135, 230529), (195, 159597), (207, 150345), (257, 121095), (299, 104085), (345, 90207), (351, 88665), (405, 76843), (585, 53199), (621, 50115), (771, 40365), (897, 34695), (1035, 30069), (1053, 29555), (1285, 24219), (1495, 20817), (1755, 17733), (1863, 16705), (2313, 13455), (2691, 11565), (3105, 10023), (3341, 9315), (3855, 8073), (4485, 6939), (5265, 5911)]