28865900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:208

約数の個数: 108

約数和(自身を含む): 75104568

約数和(自身を除く): 46238668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 43, 49, 50, 70, 86, 98, 100, 137, 140, 172, 175, 196, 215, 245, 274, 301, 350, 430, 490, 548, 602, 685, 700, 860, 959, 980, 1075, 1204, 1225, 1370, 1505, 1918, 2107, 2150, 2450, 2740, 3010, 3425, 3836, 4214, 4300, 4795, 4900, 5891, 6020, 6713, 6850, 7525, 8428, 9590, 10535, 11782, 13426, 13700, 15050, 19180, 21070, 23564, 23975, 26852, 29455, 30100, 33565, 41237, 42140, 47950, 52675, 58910, 67130, 82474, 95900, 105350, 117820, 134260, 147275, 164948, 167825, 206185, 210700, 288659, 294550, 335650, 412370, 577318, 589100, 671300, 824740, 1030925, 1154636, 1443295, 2061850, 2886590, 4123700, 5773180, 7216475, 14432950, 28865900]

約数ペア:

[(1, 28865900), (2, 14432950), (4, 7216475), (5, 5773180), (7, 4123700), (10, 2886590), (14, 2061850), (20, 1443295), (25, 1154636), (28, 1030925), (35, 824740), (43, 671300), (49, 589100), (50, 577318), (70, 412370), (86, 335650), (98, 294550), (100, 288659), (137, 210700), (140, 206185), (172, 167825), (175, 164948), (196, 147275), (215, 134260), (245, 117820), (274, 105350), (301, 95900), (350, 82474), (430, 67130), (490, 58910), (548, 52675), (602, 47950), (685, 42140), (700, 41237), (860, 33565), (959, 30100), (980, 29455), (1075, 26852), (1204, 23975), (1225, 23564), (1370, 21070), (1505, 19180), (1918, 15050), (2107, 13700), (2150, 13426), (2450, 11782), (2740, 10535), (3010, 9590), (3425, 8428), (3836, 7525), (4214, 6850), (4300, 6713), (4795, 6020), (4900, 5891)]