405228640

素因数分解:

$2^5\times 5^1\times {\mathrm{557}}^1\times {\mathrm{4547}}^1$

素因数の和:5119

約数の個数: 48

約数和(自身を含む): 959282352

約数和(自身を除く): 554053712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 557, 1114, 2228, 2785, 4456, 4547, 5570, 8912, 9094, 11140, 17824, 18188, 22280, 22735, 36376, 44560, 45470, 72752, 89120, 90940, 145504, 181880, 363760, 727520, 2532679, 5065358, 10130716, 12663395, 20261432, 25326790, 40522864, 50653580, 81045728, 101307160, 202614320, 405228640]

約数ペア:

[(1, 405228640), (2, 202614320), (4, 101307160), (5, 81045728), (8, 50653580), (10, 40522864), (16, 25326790), (20, 20261432), (32, 12663395), (40, 10130716), (80, 5065358), (160, 2532679), (557, 727520), (1114, 363760), (2228, 181880), (2785, 145504), (4456, 90940), (4547, 89120), (5570, 72752), (8912, 45470), (9094, 44560), (11140, 36376), (17824, 22735), (18188, 22280)]