21783120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1$

素因数の和:333

約数の個数: 160

約数和(自身を含む): 75530880

約数和(自身を除く): 53747760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 19, 20, 24, 30, 34, 38, 40, 48, 51, 57, 60, 68, 76, 80, 85, 95, 102, 114, 120, 136, 152, 170, 190, 204, 228, 240, 255, 272, 281, 285, 304, 323, 340, 380, 408, 456, 510, 562, 570, 646, 680, 760, 816, 843, 912, 969, 1020, 1124, 1140, 1292, 1360, 1405, 1520, 1615, 1686, 1938, 2040, 2248, 2280, 2584, 2810, 3230, 3372, 3876, 4080, 4215, 4496, 4560, 4777, 4845, 5168, 5339, 5620, 6460, 6744, 7752, 8430, 9554, 9690, 10678, 11240, 12920, 13488, 14331, 15504, 16017, 16860, 19108, 19380, 21356, 22480, 23885, 25840, 26695, 28662, 32034, 33720, 38216, 38760, 42712, 47770, 53390, 57324, 64068, 67440, 71655, 76432, 77520, 80085, 85424, 90763, 95540, 106780, 114648, 128136, 143310, 160170, 181526, 191080, 213560, 229296, 256272, 272289, 286620, 320340, 363052, 382160, 427120, 453815, 544578, 573240, 640680, 726104, 907630, 1089156, 1146480, 1281360, 1361445, 1452208, 1815260, 2178312, 2722890, 3630520, 4356624, 5445780, 7261040, 10891560, 21783120]

約数ペア:

[(1, 21783120), (2, 10891560), (3, 7261040), (4, 5445780), (5, 4356624), (6, 3630520), (8, 2722890), (10, 2178312), (12, 1815260), (15, 1452208), (16, 1361445), (17, 1281360), (19, 1146480), (20, 1089156), (24, 907630), (30, 726104), (34, 640680), (38, 573240), (40, 544578), (48, 453815), (51, 427120), (57, 382160), (60, 363052), (68, 320340), (76, 286620), (80, 272289), (85, 256272), (95, 229296), (102, 213560), (114, 191080), (120, 181526), (136, 160170), (152, 143310), (170, 128136), (190, 114648), (204, 106780), (228, 95540), (240, 90763), (255, 85424), (272, 80085), (281, 77520), (285, 76432), (304, 71655), (323, 67440), (340, 64068), (380, 57324), (408, 53390), (456, 47770), (510, 42712), (562, 38760), (570, 38216), (646, 33720), (680, 32034), (760, 28662), (816, 26695), (843, 25840), (912, 23885), (969, 22480), (1020, 21356), (1124, 19380), (1140, 19108), (1292, 16860), (1360, 16017), (1405, 15504), (1520, 14331), (1615, 13488), (1686, 12920), (1938, 11240), (2040, 10678), (2248, 9690), (2280, 9554), (2584, 8430), (2810, 7752), (3230, 6744), (3372, 6460), (3876, 5620), (4080, 5339), (4215, 5168), (4496, 4845), (4560, 4777)]