20931738230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{42073}}^1$

素因数の和:42225

約数の個数: 64

約数和(自身を含む): 41986486080

約数和(自身を除く): 21054747850

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 89, 130, 178, 215, 430, 445, 559, 890, 1118, 1157, 2314, 2795, 3827, 5590, 5785, 7654, 11570, 19135, 38270, 42073, 49751, 84146, 99502, 210365, 248755, 420730, 497510, 546949, 1093898, 1809139, 2734745, 3618278, 3744497, 5469490, 7488994, 9045695, 18091390, 18722485, 23518807, 37444970, 47037614, 48678461, 97356922, 117594035, 161013371, 235188070, 243392305, 322026742, 486784610, 805066855, 1610133710, 2093173823, 4186347646, 10465869115, 20931738230]

約数ペア:

[(1, 20931738230), (2, 10465869115), (5, 4186347646), (10, 2093173823), (13, 1610133710), (26, 805066855), (43, 486784610), (65, 322026742), (86, 243392305), (89, 235188070), (130, 161013371), (178, 117594035), (215, 97356922), (430, 48678461), (445, 47037614), (559, 37444970), (890, 23518807), (1118, 18722485), (1157, 18091390), (2314, 9045695), (2795, 7488994), (3827, 5469490), (5590, 3744497), (5785, 3618278), (7654, 2734745), (11570, 1809139), (19135, 1093898), (38270, 546949), (42073, 497510), (49751, 420730), (84146, 248755), (99502, 210365)]