16868475

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:181

約数の個数: 72

約数和(自身を含む): 33400640

約数和(自身を除く): 16532165

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 73, 75, 79, 117, 195, 219, 225, 237, 325, 365, 395, 585, 657, 711, 949, 975, 1027, 1095, 1185, 1825, 1975, 2847, 2925, 3081, 3285, 3555, 4745, 5135, 5475, 5767, 5925, 8541, 9243, 14235, 15405, 16425, 17301, 17775, 23725, 25675, 28835, 42705, 46215, 51903, 71175, 74971, 77025, 86505, 144175, 213525, 224913, 231075, 259515, 374855, 432525, 674739, 1124565, 1297575, 1874275, 3373695, 5622825, 16868475]

約数ペア:

[(1, 16868475), (3, 5622825), (5, 3373695), (9, 1874275), (13, 1297575), (15, 1124565), (25, 674739), (39, 432525), (45, 374855), (65, 259515), (73, 231075), (75, 224913), (79, 213525), (117, 144175), (195, 86505), (219, 77025), (225, 74971), (237, 71175), (325, 51903), (365, 46215), (395, 42705), (585, 28835), (657, 25675), (711, 23725), (949, 17775), (975, 17301), (1027, 16425), (1095, 15405), (1185, 14235), (1825, 9243), (1975, 8541), (2847, 5925), (2925, 5767), (3081, 5475), (3285, 5135), (3555, 4745)]