15405975

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 31143840

約数和(自身を除く): 15737865

約数列:

[1, 3, 5, 9, 13, 15, 23, 25, 39, 45, 65, 69, 75, 115, 117, 195, 207, 225, 229, 299, 325, 345, 575, 585, 687, 897, 975, 1035, 1145, 1495, 1725, 2061, 2691, 2925, 2977, 3435, 4485, 5175, 5267, 5725, 7475, 8931, 10305, 13455, 14885, 15801, 17175, 22425, 26335, 26793, 44655, 47403, 51525, 67275, 68471, 74425, 79005, 131675, 133965, 205413, 223275, 237015, 342355, 395025, 616239, 669825, 1027065, 1185075, 1711775, 3081195, 5135325, 15405975]

約数ペア:

[(1, 15405975), (3, 5135325), (5, 3081195), (9, 1711775), (13, 1185075), (15, 1027065), (23, 669825), (25, 616239), (39, 395025), (45, 342355), (65, 237015), (69, 223275), (75, 205413), (115, 133965), (117, 131675), (195, 79005), (207, 74425), (225, 68471), (229, 67275), (299, 51525), (325, 47403), (345, 44655), (575, 26793), (585, 26335), (687, 22425), (897, 17175), (975, 15801), (1035, 14885), (1145, 13455), (1495, 10305), (1725, 8931), (2061, 7475), (2691, 5725), (2925, 5267), (2977, 5175), (3435, 4485)]