215943520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:273

約数の個数: 192

約数和(自身を含む): 603542016

約数和(自身を除く): 387598496

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 31, 32, 34, 40, 52, 62, 65, 68, 80, 85, 104, 124, 130, 136, 155, 160, 170, 197, 208, 221, 248, 260, 272, 310, 340, 394, 403, 416, 442, 496, 520, 527, 544, 620, 680, 788, 806, 884, 985, 992, 1040, 1054, 1105, 1240, 1360, 1576, 1612, 1768, 1970, 2015, 2080, 2108, 2210, 2480, 2561, 2635, 2720, 3152, 3224, 3349, 3536, 3940, 4030, 4216, 4420, 4960, 5122, 5270, 6107, 6304, 6448, 6698, 6851, 7072, 7880, 8060, 8432, 8840, 10244, 10540, 12214, 12805, 12896, 13396, 13702, 15760, 16120, 16745, 16864, 17680, 20488, 21080, 24428, 25610, 26792, 27404, 30535, 31520, 32240, 33490, 34255, 35360, 40976, 42160, 43537, 48856, 51220, 53584, 54808, 61070, 64480, 66980, 68510, 79391, 81952, 84320, 87074, 97712, 102440, 103819, 107168, 109616, 122140, 133960, 137020, 158782, 174148, 195424, 204880, 207638, 217685, 219232, 244280, 267920, 274040, 317564, 348296, 396955, 409760, 415276, 435370, 488560, 519095, 535840, 548080, 635128, 696592, 793910, 830552, 870740, 977120, 1038190, 1096160, 1270256, 1349647, 1393184, 1587820, 1661104, 1741480, 2076380, 2540512, 2699294, 3175640, 3322208, 3482960, 4152760, 5398588, 6351280, 6748235, 6965920, 8305520, 10797176, 12702560, 13496470, 16611040, 21594352, 26992940, 43188704, 53985880, 107971760, 215943520]

約数ペア:

[(1, 215943520), (2, 107971760), (4, 53985880), (5, 43188704), (8, 26992940), (10, 21594352), (13, 16611040), (16, 13496470), (17, 12702560), (20, 10797176), (26, 8305520), (31, 6965920), (32, 6748235), (34, 6351280), (40, 5398588), (52, 4152760), (62, 3482960), (65, 3322208), (68, 3175640), (80, 2699294), (85, 2540512), (104, 2076380), (124, 1741480), (130, 1661104), (136, 1587820), (155, 1393184), (160, 1349647), (170, 1270256), (197, 1096160), (208, 1038190), (221, 977120), (248, 870740), (260, 830552), (272, 793910), (310, 696592), (340, 635128), (394, 548080), (403, 535840), (416, 519095), (442, 488560), (496, 435370), (520, 415276), (527, 409760), (544, 396955), (620, 348296), (680, 317564), (788, 274040), (806, 267920), (884, 244280), (985, 219232), (992, 217685), (1040, 207638), (1054, 204880), (1105, 195424), (1240, 174148), (1360, 158782), (1576, 137020), (1612, 133960), (1768, 122140), (1970, 109616), (2015, 107168), (2080, 103819), (2108, 102440), (2210, 97712), (2480, 87074), (2561, 84320), (2635, 81952), (2720, 79391), (3152, 68510), (3224, 66980), (3349, 64480), (3536, 61070), (3940, 54808), (4030, 53584), (4216, 51220), (4420, 48856), (4960, 43537), (5122, 42160), (5270, 40976), (6107, 35360), (6304, 34255), (6448, 33490), (6698, 32240), (6851, 31520), (7072, 30535), (7880, 27404), (8060, 26792), (8432, 25610), (8840, 24428), (10244, 21080), (10540, 20488), (12214, 17680), (12805, 16864), (12896, 16745), (13396, 16120), (13702, 15760)]