211880020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{293}}^1$

素因数の和:505

約数の個数: 96

約数和(自身を含む): 515652480

約数和(自身を除く): 303772460

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 173, 190, 209, 220, 293, 346, 380, 418, 586, 692, 836, 865, 1045, 1172, 1465, 1730, 1903, 2090, 2930, 3223, 3287, 3460, 3806, 4180, 5567, 5860, 6446, 6574, 7612, 9515, 11134, 12892, 13148, 16115, 16435, 19030, 22268, 27835, 32230, 32870, 36157, 38060, 50689, 55670, 61237, 64460, 65740, 72314, 101378, 111340, 122474, 144628, 180785, 202756, 244948, 253445, 306185, 361570, 506890, 557579, 612370, 723140, 963091, 1013780, 1115158, 1224740, 1926182, 2230316, 2787895, 3852364, 4815455, 5575790, 9630910, 10594001, 11151580, 19261820, 21188002, 42376004, 52970005, 105940010, 211880020]

約数ペア:

[(1, 211880020), (2, 105940010), (4, 52970005), (5, 42376004), (10, 21188002), (11, 19261820), (19, 11151580), (20, 10594001), (22, 9630910), (38, 5575790), (44, 4815455), (55, 3852364), (76, 2787895), (95, 2230316), (110, 1926182), (173, 1224740), (190, 1115158), (209, 1013780), (220, 963091), (293, 723140), (346, 612370), (380, 557579), (418, 506890), (586, 361570), (692, 306185), (836, 253445), (865, 244948), (1045, 202756), (1172, 180785), (1465, 144628), (1730, 122474), (1903, 111340), (2090, 101378), (2930, 72314), (3223, 65740), (3287, 64460), (3460, 61237), (3806, 55670), (4180, 50689), (5567, 38060), (5860, 36157), (6446, 32870), (6574, 32230), (7612, 27835), (9515, 22268), (11134, 19030), (12892, 16435), (13148, 16115)]