278295680

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:159

約数の個数: 192

約数和(自身を含む): 752613120

約数和(自身を除く): 474317440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 83, 104, 124, 128, 130, 155, 160, 166, 169, 208, 248, 260, 310, 320, 332, 338, 403, 415, 416, 496, 520, 620, 640, 664, 676, 806, 830, 832, 845, 992, 1040, 1079, 1240, 1328, 1352, 1612, 1660, 1664, 1690, 1984, 2015, 2080, 2158, 2480, 2573, 2656, 2704, 3224, 3320, 3380, 3968, 4030, 4160, 4316, 4960, 5146, 5239, 5312, 5395, 5408, 6448, 6640, 6760, 8060, 8320, 8632, 9920, 10292, 10478, 10624, 10790, 10816, 12865, 12896, 13280, 13520, 14027, 16120, 17264, 19840, 20584, 20956, 21580, 21632, 25730, 25792, 26195, 26560, 27040, 28054, 32240, 33449, 34528, 41168, 41912, 43160, 51460, 51584, 52390, 53120, 54080, 56108, 64480, 66898, 69056, 70135, 82336, 83824, 86320, 102920, 104780, 108160, 112216, 128960, 133796, 138112, 140270, 164672, 167245, 167648, 172640, 205840, 209560, 224432, 257920, 267592, 280540, 329344, 334490, 335296, 345280, 411680, 419120, 434837, 448864, 535184, 561080, 668980, 670592, 690560, 823360, 838240, 869674, 897728, 1070368, 1122160, 1337960, 1646720, 1676480, 1739348, 1795456, 2140736, 2174185, 2244320, 2675920, 3352960, 3478696, 4281472, 4348370, 4488640, 5351840, 6957392, 8696740, 8977280, 10703680, 13914784, 17393480, 21407360, 27829568, 34786960, 55659136, 69573920, 139147840, 278295680]

約数ペア:

[(1, 278295680), (2, 139147840), (4, 69573920), (5, 55659136), (8, 34786960), (10, 27829568), (13, 21407360), (16, 17393480), (20, 13914784), (26, 10703680), (31, 8977280), (32, 8696740), (40, 6957392), (52, 5351840), (62, 4488640), (64, 4348370), (65, 4281472), (80, 3478696), (83, 3352960), (104, 2675920), (124, 2244320), (128, 2174185), (130, 2140736), (155, 1795456), (160, 1739348), (166, 1676480), (169, 1646720), (208, 1337960), (248, 1122160), (260, 1070368), (310, 897728), (320, 869674), (332, 838240), (338, 823360), (403, 690560), (415, 670592), (416, 668980), (496, 561080), (520, 535184), (620, 448864), (640, 434837), (664, 419120), (676, 411680), (806, 345280), (830, 335296), (832, 334490), (845, 329344), (992, 280540), (1040, 267592), (1079, 257920), (1240, 224432), (1328, 209560), (1352, 205840), (1612, 172640), (1660, 167648), (1664, 167245), (1690, 164672), (1984, 140270), (2015, 138112), (2080, 133796), (2158, 128960), (2480, 112216), (2573, 108160), (2656, 104780), (2704, 102920), (3224, 86320), (3320, 83824), (3380, 82336), (3968, 70135), (4030, 69056), (4160, 66898), (4316, 64480), (4960, 56108), (5146, 54080), (5239, 53120), (5312, 52390), (5395, 51584), (5408, 51460), (6448, 43160), (6640, 41912), (6760, 41168), (8060, 34528), (8320, 33449), (8632, 32240), (9920, 28054), (10292, 27040), (10478, 26560), (10624, 26195), (10790, 25792), (10816, 25730), (12865, 21632), (12896, 21580), (13280, 20956), (13520, 20584), (14027, 19840), (16120, 17264)]