204702940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{853}}^1$

素因数の和:959

約数の個数: 72

約数和(自身を含む): 472596768

約数和(自身を除く): 267893828

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 169, 260, 284, 338, 355, 676, 710, 845, 853, 923, 1420, 1690, 1706, 1846, 3380, 3412, 3692, 4265, 4615, 8530, 9230, 11089, 11999, 17060, 18460, 22178, 23998, 44356, 47996, 55445, 59995, 60563, 110890, 119990, 121126, 144157, 221780, 239980, 242252, 288314, 302815, 576628, 605630, 720785, 787319, 1211260, 1441570, 1574638, 2883140, 3149276, 3936595, 7873190, 10235147, 15746380, 20470294, 40940588, 51175735, 102351470, 204702940]

約数ペア:

[(1, 204702940), (2, 102351470), (4, 51175735), (5, 40940588), (10, 20470294), (13, 15746380), (20, 10235147), (26, 7873190), (52, 3936595), (65, 3149276), (71, 2883140), (130, 1574638), (142, 1441570), (169, 1211260), (260, 787319), (284, 720785), (338, 605630), (355, 576628), (676, 302815), (710, 288314), (845, 242252), (853, 239980), (923, 221780), (1420, 144157), (1690, 121126), (1706, 119990), (1846, 110890), (3380, 60563), (3412, 59995), (3692, 55445), (4265, 47996), (4615, 44356), (8530, 23998), (9230, 22178), (11089, 18460), (11999, 17060)]