81593980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:323

約数の個数: 96

約数和(自身を含む): 197568000

約数和(自身を除く): 115974020

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 83, 95, 130, 166, 190, 199, 247, 260, 332, 380, 398, 415, 494, 796, 830, 988, 995, 1079, 1235, 1577, 1660, 1990, 2158, 2470, 2587, 3154, 3781, 3980, 4316, 4940, 5174, 5395, 6308, 7562, 7885, 10348, 10790, 12935, 15124, 15770, 16517, 18905, 20501, 21580, 25870, 31540, 33034, 37810, 41002, 49153, 51740, 66068, 75620, 82004, 82585, 98306, 102505, 165170, 196612, 205010, 214721, 245765, 313823, 330340, 410020, 429442, 491530, 627646, 858884, 983060, 1073605, 1255292, 1569115, 2147210, 3138230, 4079699, 4294420, 6276460, 8159398, 16318796, 20398495, 40796990, 81593980]

約数ペア:

[(1, 81593980), (2, 40796990), (4, 20398495), (5, 16318796), (10, 8159398), (13, 6276460), (19, 4294420), (20, 4079699), (26, 3138230), (38, 2147210), (52, 1569115), (65, 1255292), (76, 1073605), (83, 983060), (95, 858884), (130, 627646), (166, 491530), (190, 429442), (199, 410020), (247, 330340), (260, 313823), (332, 245765), (380, 214721), (398, 205010), (415, 196612), (494, 165170), (796, 102505), (830, 98306), (988, 82585), (995, 82004), (1079, 75620), (1235, 66068), (1577, 51740), (1660, 49153), (1990, 41002), (2158, 37810), (2470, 33034), (2587, 31540), (3154, 25870), (3781, 21580), (3980, 20501), (4316, 18905), (4940, 16517), (5174, 15770), (5395, 15124), (6308, 12935), (7562, 10790), (7885, 10348)]