21553554220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{677}}^1\times {\mathrm{3079}}^1$

素因数の和:3823

約数の個数: 96

約数和(自身を含む): 50518702080

約数和(自身を除く): 28965147860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 677, 940, 1034, 1354, 2068, 2585, 2708, 3079, 3385, 5170, 6158, 6770, 7447, 10340, 12316, 13540, 14894, 15395, 29788, 30790, 31819, 33869, 37235, 61580, 63638, 67738, 74470, 127276, 135476, 144713, 148940, 159095, 169345, 289426, 318190, 338690, 350009, 578852, 636380, 677380, 700018, 723565, 1400036, 1447130, 1591843, 1750045, 2084483, 2894260, 3183686, 3500090, 4168966, 6367372, 7000180, 7959215, 8337932, 10422415, 15918430, 20844830, 22929313, 31836860, 41689660, 45858626, 91717252, 97970701, 114646565, 195941402, 229293130, 391882804, 458586260, 489853505, 979707010, 1077677711, 1959414020, 2155355422, 4310710844, 5388388555, 10776777110, 21553554220]

約数ペア:

[(1, 21553554220), (2, 10776777110), (4, 5388388555), (5, 4310710844), (10, 2155355422), (11, 1959414020), (20, 1077677711), (22, 979707010), (44, 489853505), (47, 458586260), (55, 391882804), (94, 229293130), (110, 195941402), (188, 114646565), (220, 97970701), (235, 91717252), (470, 45858626), (517, 41689660), (677, 31836860), (940, 22929313), (1034, 20844830), (1354, 15918430), (2068, 10422415), (2585, 8337932), (2708, 7959215), (3079, 7000180), (3385, 6367372), (5170, 4168966), (6158, 3500090), (6770, 3183686), (7447, 2894260), (10340, 2084483), (12316, 1750045), (13540, 1591843), (14894, 1447130), (15395, 1400036), (29788, 723565), (30790, 700018), (31819, 677380), (33869, 636380), (37235, 578852), (61580, 350009), (63638, 338690), (67738, 318190), (74470, 289426), (127276, 169345), (135476, 159095), (144713, 148940)]