72220372

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{281}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 148192128

約数和(自身を除く): 75971756

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 137, 268, 274, 281, 469, 548, 562, 938, 959, 1124, 1876, 1918, 1967, 3836, 3934, 7868, 9179, 18358, 18827, 36716, 37654, 38497, 64253, 75308, 76994, 128506, 131789, 153988, 257012, 263578, 269479, 527156, 538958, 1077916, 2579299, 5158598, 10317196, 18055093, 36110186, 72220372]

約数ペア:

[(1, 72220372), (2, 36110186), (4, 18055093), (7, 10317196), (14, 5158598), (28, 2579299), (67, 1077916), (134, 538958), (137, 527156), (268, 269479), (274, 263578), (281, 257012), (469, 153988), (548, 131789), (562, 128506), (938, 76994), (959, 75308), (1124, 64253), (1876, 38497), (1918, 37654), (1967, 36716), (3836, 18827), (3934, 18358), (7868, 9179)]