28729440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:373

約数の個数: 144

約数和(自身を含む): 99773856

約数和(自身を除く): 71044416

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 71, 72, 80, 90, 96, 120, 142, 144, 160, 180, 213, 240, 281, 284, 288, 355, 360, 426, 480, 562, 568, 639, 710, 720, 843, 852, 1065, 1124, 1136, 1278, 1405, 1420, 1440, 1686, 1704, 2130, 2248, 2272, 2529, 2556, 2810, 2840, 3195, 3372, 3408, 4215, 4260, 4496, 5058, 5112, 5620, 5680, 6390, 6744, 6816, 8430, 8520, 8992, 10116, 10224, 11240, 11360, 12645, 12780, 13488, 16860, 17040, 19951, 20232, 20448, 22480, 25290, 25560, 26976, 33720, 34080, 39902, 40464, 44960, 50580, 51120, 59853, 67440, 79804, 80928, 99755, 101160, 102240, 119706, 134880, 159608, 179559, 199510, 202320, 239412, 299265, 319216, 359118, 399020, 404640, 478824, 598530, 638432, 718236, 798040, 897795, 957648, 1197060, 1436472, 1596080, 1795590, 1915296, 2394120, 2872944, 3192160, 3591180, 4788240, 5745888, 7182360, 9576480, 14364720, 28729440]

約数ペア:

[(1, 28729440), (2, 14364720), (3, 9576480), (4, 7182360), (5, 5745888), (6, 4788240), (8, 3591180), (9, 3192160), (10, 2872944), (12, 2394120), (15, 1915296), (16, 1795590), (18, 1596080), (20, 1436472), (24, 1197060), (30, 957648), (32, 897795), (36, 798040), (40, 718236), (45, 638432), (48, 598530), (60, 478824), (71, 404640), (72, 399020), (80, 359118), (90, 319216), (96, 299265), (120, 239412), (142, 202320), (144, 199510), (160, 179559), (180, 159608), (213, 134880), (240, 119706), (281, 102240), (284, 101160), (288, 99755), (355, 80928), (360, 79804), (426, 67440), (480, 59853), (562, 51120), (568, 50580), (639, 44960), (710, 40464), (720, 39902), (843, 34080), (852, 33720), (1065, 26976), (1124, 25560), (1136, 25290), (1278, 22480), (1405, 20448), (1420, 20232), (1440, 19951), (1686, 17040), (1704, 16860), (2130, 13488), (2248, 12780), (2272, 12645), (2529, 11360), (2556, 11240), (2810, 10224), (2840, 10116), (3195, 8992), (3372, 8520), (3408, 8430), (4215, 6816), (4260, 6744), (4496, 6390), (5058, 5680), (5112, 5620)]