31255965

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{101}}^1$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 61595352

約数和(自身を除く): 30339387

約数列:

[1, 3, 5, 9, 13, 15, 23, 39, 45, 65, 69, 101, 115, 117, 195, 207, 299, 303, 345, 505, 529, 585, 897, 909, 1035, 1313, 1495, 1515, 1587, 2323, 2645, 2691, 3939, 4485, 4545, 4761, 6565, 6877, 6969, 7935, 11615, 11817, 13455, 19695, 20631, 20907, 23805, 30199, 34385, 34845, 53429, 59085, 61893, 90597, 103155, 104535, 150995, 160287, 267145, 271791, 309465, 452985, 480861, 694577, 801435, 1358955, 2083731, 2404305, 3472885, 6251193, 10418655, 31255965]

約数ペア:

[(1, 31255965), (3, 10418655), (5, 6251193), (9, 3472885), (13, 2404305), (15, 2083731), (23, 1358955), (39, 801435), (45, 694577), (65, 480861), (69, 452985), (101, 309465), (115, 271791), (117, 267145), (195, 160287), (207, 150995), (299, 104535), (303, 103155), (345, 90597), (505, 61893), (529, 59085), (585, 53429), (897, 34845), (909, 34385), (1035, 30199), (1313, 23805), (1495, 20907), (1515, 20631), (1587, 19695), (2323, 13455), (2645, 11817), (2691, 11615), (3939, 7935), (4485, 6969), (4545, 6877), (4761, 6565)]