254822120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{659}}^1\times {\mathrm{1381}}^1$

素因数の和:2058

約数の個数: 64

約数和(自身を含む): 656726400

約数和(自身を除く): 401904280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 659, 1318, 1381, 2636, 2762, 3295, 4613, 5272, 5524, 6590, 6905, 9226, 9667, 11048, 13180, 13810, 18452, 19334, 23065, 26360, 27620, 36904, 38668, 46130, 48335, 55240, 77336, 92260, 96670, 184520, 193340, 386680, 910079, 1820158, 3640316, 4550395, 6370553, 7280632, 9100790, 12741106, 18201580, 25482212, 31852765, 36403160, 50964424, 63705530, 127411060, 254822120]

約数ペア:

[(1, 254822120), (2, 127411060), (4, 63705530), (5, 50964424), (7, 36403160), (8, 31852765), (10, 25482212), (14, 18201580), (20, 12741106), (28, 9100790), (35, 7280632), (40, 6370553), (56, 4550395), (70, 3640316), (140, 1820158), (280, 910079), (659, 386680), (1318, 193340), (1381, 184520), (2636, 96670), (2762, 92260), (3295, 77336), (4613, 55240), (5272, 48335), (5524, 46130), (6590, 38668), (6905, 36904), (9226, 27620), (9667, 26360), (11048, 23065), (13180, 19334), (13810, 18452)]