217591640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:385

約数の個数: 128

約数和(自身を含む): 586137600

約数和(自身を除く): 368545960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 127, 140, 145, 203, 211, 232, 254, 280, 290, 406, 422, 508, 580, 635, 812, 844, 889, 1015, 1016, 1055, 1160, 1270, 1477, 1624, 1688, 1778, 2030, 2110, 2540, 2954, 3556, 3683, 4060, 4220, 4445, 5080, 5908, 6119, 7112, 7366, 7385, 8120, 8440, 8890, 11816, 12238, 14732, 14770, 17780, 18415, 24476, 25781, 26797, 29464, 29540, 30595, 35560, 36830, 42833, 48952, 51562, 53594, 59080, 61190, 73660, 85666, 103124, 107188, 122380, 128905, 133985, 147320, 171332, 187579, 206248, 214165, 214376, 244760, 257810, 267970, 342664, 375158, 428330, 515620, 535940, 750316, 777113, 856660, 937895, 1031240, 1071880, 1500632, 1554226, 1713320, 1875790, 3108452, 3751580, 3885565, 5439791, 6216904, 7503160, 7771130, 10879582, 15542260, 21759164, 27198955, 31084520, 43518328, 54397910, 108795820, 217591640]

約数ペア:

[(1, 217591640), (2, 108795820), (4, 54397910), (5, 43518328), (7, 31084520), (8, 27198955), (10, 21759164), (14, 15542260), (20, 10879582), (28, 7771130), (29, 7503160), (35, 6216904), (40, 5439791), (56, 3885565), (58, 3751580), (70, 3108452), (116, 1875790), (127, 1713320), (140, 1554226), (145, 1500632), (203, 1071880), (211, 1031240), (232, 937895), (254, 856660), (280, 777113), (290, 750316), (406, 535940), (422, 515620), (508, 428330), (580, 375158), (635, 342664), (812, 267970), (844, 257810), (889, 244760), (1015, 214376), (1016, 214165), (1055, 206248), (1160, 187579), (1270, 171332), (1477, 147320), (1624, 133985), (1688, 128905), (1778, 122380), (2030, 107188), (2110, 103124), (2540, 85666), (2954, 73660), (3556, 61190), (3683, 59080), (4060, 53594), (4220, 51562), (4445, 48952), (5080, 42833), (5908, 36830), (6119, 35560), (7112, 30595), (7366, 29540), (7385, 29464), (8120, 26797), (8440, 25781), (8890, 24476), (11816, 18415), (12238, 17780), (14732, 14770)]