20802720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2281}}^1$

素因数の和:2318

約数の個数: 96

約数和(自身を含む): 69007680

約数和(自身を除く): 48204960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 76, 80, 95, 96, 114, 120, 152, 160, 190, 228, 240, 285, 304, 380, 456, 480, 570, 608, 760, 912, 1140, 1520, 1824, 2280, 2281, 3040, 4560, 4562, 6843, 9120, 9124, 11405, 13686, 18248, 22810, 27372, 34215, 36496, 43339, 45620, 54744, 68430, 72992, 86678, 91240, 109488, 130017, 136860, 173356, 182480, 216695, 218976, 260034, 273720, 346712, 364960, 433390, 520068, 547440, 650085, 693424, 866780, 1040136, 1094880, 1300170, 1386848, 1733560, 2080272, 2600340, 3467120, 4160544, 5200680, 6934240, 10401360, 20802720]

約数ペア:

[(1, 20802720), (2, 10401360), (3, 6934240), (4, 5200680), (5, 4160544), (6, 3467120), (8, 2600340), (10, 2080272), (12, 1733560), (15, 1386848), (16, 1300170), (19, 1094880), (20, 1040136), (24, 866780), (30, 693424), (32, 650085), (38, 547440), (40, 520068), (48, 433390), (57, 364960), (60, 346712), (76, 273720), (80, 260034), (95, 218976), (96, 216695), (114, 182480), (120, 173356), (152, 136860), (160, 130017), (190, 109488), (228, 91240), (240, 86678), (285, 72992), (304, 68430), (380, 54744), (456, 45620), (480, 43339), (570, 36496), (608, 34215), (760, 27372), (912, 22810), (1140, 18248), (1520, 13686), (1824, 11405), (2280, 9124), (2281, 9120), (3040, 6843), (4560, 4562)]