20783640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:233

約数の個数: 128

約数和(自身を含む): 66539520

約数和(自身を除く): 45755880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 37, 40, 60, 62, 74, 93, 111, 120, 124, 148, 151, 155, 185, 186, 222, 248, 296, 302, 310, 370, 372, 444, 453, 465, 555, 604, 620, 740, 744, 755, 888, 906, 930, 1110, 1147, 1208, 1240, 1480, 1510, 1812, 1860, 2220, 2265, 2294, 3020, 3441, 3624, 3720, 4440, 4530, 4588, 4681, 5587, 5735, 6040, 6882, 9060, 9176, 9362, 11174, 11470, 13764, 14043, 16761, 17205, 18120, 18724, 22348, 22940, 23405, 27528, 27935, 28086, 33522, 34410, 37448, 44696, 45880, 46810, 55870, 56172, 67044, 68820, 70215, 83805, 93620, 111740, 112344, 134088, 137640, 140430, 167610, 173197, 187240, 223480, 280860, 335220, 346394, 519591, 561720, 670440, 692788, 865985, 1039182, 1385576, 1731970, 2078364, 2597955, 3463940, 4156728, 5195910, 6927880, 10391820, 20783640]

約数ペア:

[(1, 20783640), (2, 10391820), (3, 6927880), (4, 5195910), (5, 4156728), (6, 3463940), (8, 2597955), (10, 2078364), (12, 1731970), (15, 1385576), (20, 1039182), (24, 865985), (30, 692788), (31, 670440), (37, 561720), (40, 519591), (60, 346394), (62, 335220), (74, 280860), (93, 223480), (111, 187240), (120, 173197), (124, 167610), (148, 140430), (151, 137640), (155, 134088), (185, 112344), (186, 111740), (222, 93620), (248, 83805), (296, 70215), (302, 68820), (310, 67044), (370, 56172), (372, 55870), (444, 46810), (453, 45880), (465, 44696), (555, 37448), (604, 34410), (620, 33522), (740, 28086), (744, 27935), (755, 27528), (888, 23405), (906, 22940), (930, 22348), (1110, 18724), (1147, 18120), (1208, 17205), (1240, 16761), (1480, 14043), (1510, 13764), (1812, 11470), (1860, 11174), (2220, 9362), (2265, 9176), (2294, 9060), (3020, 6882), (3441, 6040), (3624, 5735), (3720, 5587), (4440, 4681), (4530, 4588)]