399888964

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{379}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 740884480

約数和(自身を除く): 340995516

約数列:

[1, 2, 4, 31, 62, 67, 124, 127, 134, 254, 268, 379, 508, 758, 1516, 2077, 3937, 4154, 7874, 8308, 8509, 11749, 15748, 17018, 23498, 25393, 34036, 46996, 48133, 50786, 96266, 101572, 192532, 263779, 527558, 787183, 1055116, 1492123, 1574366, 2984246, 3148732, 3224911, 5968492, 6449822, 12899644, 99972241, 199944482, 399888964]

約数ペア:

[(1, 399888964), (2, 199944482), (4, 99972241), (31, 12899644), (62, 6449822), (67, 5968492), (124, 3224911), (127, 3148732), (134, 2984246), (254, 1574366), (268, 1492123), (379, 1055116), (508, 787183), (758, 527558), (1516, 263779), (2077, 192532), (3937, 101572), (4154, 96266), (7874, 50786), (8308, 48133), (8509, 46996), (11749, 34036), (15748, 25393), (17018, 23498)]