40796990

素因数分解:

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

素因数の和:321

約数の個数: 64

約数和(自身を含む): 84672000

約数和(自身を除く): 43875010

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 83, 95, 130, 166, 190, 199, 247, 398, 415, 494, 830, 995, 1079, 1235, 1577, 1990, 2158, 2470, 2587, 3154, 3781, 5174, 5395, 7562, 7885, 10790, 12935, 15770, 16517, 18905, 20501, 25870, 33034, 37810, 41002, 49153, 82585, 98306, 102505, 165170, 205010, 214721, 245765, 313823, 429442, 491530, 627646, 1073605, 1569115, 2147210, 3138230, 4079699, 8159398, 20398495, 40796990]

約数ペア:

[(1, 40796990), (2, 20398495), (5, 8159398), (10, 4079699), (13, 3138230), (19, 2147210), (26, 1569115), (38, 1073605), (65, 627646), (83, 491530), (95, 429442), (130, 313823), (166, 245765), (190, 214721), (199, 205010), (247, 165170), (398, 102505), (415, 98306), (494, 82585), (830, 49153), (995, 41002), (1079, 37810), (1235, 33034), (1577, 25870), (1990, 20501), (2158, 18905), (2470, 16517), (2587, 15770), (3154, 12935), (3781, 10790), (5174, 7885), (5395, 7562)]