72746440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:279

約数の個数: 128

約数和(自身を含む): 191520000

約数和(自身を除く): 118773560

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 37, 38, 40, 52, 65, 74, 76, 95, 104, 130, 148, 152, 185, 190, 199, 247, 260, 296, 370, 380, 398, 481, 494, 520, 703, 740, 760, 796, 962, 988, 995, 1235, 1406, 1480, 1592, 1924, 1976, 1990, 2405, 2470, 2587, 2812, 3515, 3781, 3848, 3980, 4810, 4940, 5174, 5624, 7030, 7363, 7562, 7960, 9139, 9620, 9880, 10348, 12935, 14060, 14726, 15124, 18278, 18905, 19240, 20696, 25870, 28120, 29452, 30248, 36556, 36815, 37810, 45695, 49153, 51740, 58904, 73112, 73630, 75620, 91390, 95719, 98306, 103480, 139897, 147260, 151240, 182780, 191438, 196612, 245765, 279794, 294520, 365560, 382876, 393224, 478595, 491530, 559588, 699485, 765752, 957190, 983060, 1119176, 1398970, 1818661, 1914380, 1966120, 2797940, 3637322, 3828760, 5595880, 7274644, 9093305, 14549288, 18186610, 36373220, 72746440]

約数ペア:

[(1, 72746440), (2, 36373220), (4, 18186610), (5, 14549288), (8, 9093305), (10, 7274644), (13, 5595880), (19, 3828760), (20, 3637322), (26, 2797940), (37, 1966120), (38, 1914380), (40, 1818661), (52, 1398970), (65, 1119176), (74, 983060), (76, 957190), (95, 765752), (104, 699485), (130, 559588), (148, 491530), (152, 478595), (185, 393224), (190, 382876), (199, 365560), (247, 294520), (260, 279794), (296, 245765), (370, 196612), (380, 191438), (398, 182780), (481, 151240), (494, 147260), (520, 139897), (703, 103480), (740, 98306), (760, 95719), (796, 91390), (962, 75620), (988, 73630), (995, 73112), (1235, 58904), (1406, 51740), (1480, 49153), (1592, 45695), (1924, 37810), (1976, 36815), (1990, 36556), (2405, 30248), (2470, 29452), (2587, 28120), (2812, 25870), (3515, 20696), (3781, 19240), (3848, 18905), (3980, 18278), (4810, 15124), (4940, 14726), (5174, 14060), (5624, 12935), (7030, 10348), (7363, 9880), (7562, 9620), (7960, 9139)]