21636440

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:134

約数の個数: 128

約数和(自身を含む): 60480000

約数和(自身を除く): 38843560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 83, 95, 98, 133, 140, 152, 166, 190, 196, 245, 266, 280, 332, 343, 380, 392, 415, 490, 532, 581, 664, 665, 686, 760, 830, 931, 980, 1064, 1162, 1330, 1372, 1577, 1660, 1715, 1862, 1960, 2324, 2660, 2744, 2905, 3154, 3320, 3430, 3724, 4067, 4648, 4655, 5320, 5810, 6308, 6517, 6860, 7448, 7885, 8134, 9310, 11039, 11620, 12616, 13034, 13720, 15770, 16268, 18620, 20335, 22078, 23240, 26068, 28469, 31540, 32536, 32585, 37240, 40670, 44156, 52136, 55195, 56938, 63080, 65170, 77273, 81340, 88312, 110390, 113876, 130340, 142345, 154546, 162680, 220780, 227752, 260680, 284690, 309092, 386365, 441560, 540911, 569380, 618184, 772730, 1081822, 1138760, 1545460, 2163644, 2704555, 3090920, 4327288, 5409110, 10818220, 21636440]

約数ペア:

[(1, 21636440), (2, 10818220), (4, 5409110), (5, 4327288), (7, 3090920), (8, 2704555), (10, 2163644), (14, 1545460), (19, 1138760), (20, 1081822), (28, 772730), (35, 618184), (38, 569380), (40, 540911), (49, 441560), (56, 386365), (70, 309092), (76, 284690), (83, 260680), (95, 227752), (98, 220780), (133, 162680), (140, 154546), (152, 142345), (166, 130340), (190, 113876), (196, 110390), (245, 88312), (266, 81340), (280, 77273), (332, 65170), (343, 63080), (380, 56938), (392, 55195), (415, 52136), (490, 44156), (532, 40670), (581, 37240), (664, 32585), (665, 32536), (686, 31540), (760, 28469), (830, 26068), (931, 23240), (980, 22078), (1064, 20335), (1162, 18620), (1330, 16268), (1372, 15770), (1577, 13720), (1660, 13034), (1715, 12616), (1862, 11620), (1960, 11039), (2324, 9310), (2660, 8134), (2744, 7885), (2905, 7448), (3154, 6860), (3320, 6517), (3430, 6308), (3724, 5810), (4067, 5320), (4648, 4655)]