28265965

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:158

約数の個数: 64

約数和(自身を含む): 45351936

約数和(自身を除く): 17085971

約数列:

[1, 5, 7, 13, 23, 35, 37, 65, 73, 91, 115, 161, 185, 259, 299, 365, 455, 481, 511, 805, 851, 949, 1295, 1495, 1679, 2093, 2405, 2555, 2701, 3367, 4255, 4745, 5957, 6643, 8395, 10465, 11063, 11753, 13505, 16835, 18907, 21827, 29785, 33215, 35113, 55315, 58765, 62123, 77441, 94535, 109135, 152789, 175565, 245791, 310615, 387205, 434861, 763945, 807599, 1228955, 2174305, 4037995, 5653193, 28265965]

約数ペア:

[(1, 28265965), (5, 5653193), (7, 4037995), (13, 2174305), (23, 1228955), (35, 807599), (37, 763945), (65, 434861), (73, 387205), (91, 310615), (115, 245791), (161, 175565), (185, 152789), (259, 109135), (299, 94535), (365, 77441), (455, 62123), (481, 58765), (511, 55315), (805, 35113), (851, 33215), (949, 29785), (1295, 21827), (1495, 18907), (1679, 16835), (2093, 13505), (2405, 11753), (2555, 11063), (2701, 10465), (3367, 8395), (4255, 6643), (4745, 5957)]