28556880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{373}}^1$

素因数の和:429

約数の個数: 160

約数和(自身を含む): 100172160

約数和(自身を除く): 71615280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 29, 30, 33, 40, 44, 48, 55, 58, 60, 66, 80, 87, 88, 110, 116, 120, 132, 145, 165, 174, 176, 220, 232, 240, 264, 290, 319, 330, 348, 373, 435, 440, 464, 528, 580, 638, 660, 696, 746, 870, 880, 957, 1119, 1160, 1276, 1320, 1392, 1492, 1595, 1740, 1865, 1914, 2238, 2320, 2552, 2640, 2984, 3190, 3480, 3730, 3828, 4103, 4476, 4785, 5104, 5595, 5968, 6380, 6960, 7460, 7656, 8206, 8952, 9570, 10817, 11190, 12309, 12760, 14920, 15312, 16412, 17904, 19140, 20515, 21634, 22380, 24618, 25520, 29840, 32451, 32824, 38280, 41030, 43268, 44760, 49236, 54085, 61545, 64902, 65648, 76560, 82060, 86536, 89520, 98472, 108170, 118987, 123090, 129804, 162255, 164120, 173072, 196944, 216340, 237974, 246180, 259608, 324510, 328240, 356961, 432680, 475948, 492360, 519216, 594935, 649020, 713922, 865360, 951896, 984720, 1189870, 1298040, 1427844, 1784805, 1903792, 2379740, 2596080, 2855688, 3569610, 4759480, 5711376, 7139220, 9518960, 14278440, 28556880]

約数ペア:

[(1, 28556880), (2, 14278440), (3, 9518960), (4, 7139220), (5, 5711376), (6, 4759480), (8, 3569610), (10, 2855688), (11, 2596080), (12, 2379740), (15, 1903792), (16, 1784805), (20, 1427844), (22, 1298040), (24, 1189870), (29, 984720), (30, 951896), (33, 865360), (40, 713922), (44, 649020), (48, 594935), (55, 519216), (58, 492360), (60, 475948), (66, 432680), (80, 356961), (87, 328240), (88, 324510), (110, 259608), (116, 246180), (120, 237974), (132, 216340), (145, 196944), (165, 173072), (174, 164120), (176, 162255), (220, 129804), (232, 123090), (240, 118987), (264, 108170), (290, 98472), (319, 89520), (330, 86536), (348, 82060), (373, 76560), (435, 65648), (440, 64902), (464, 61545), (528, 54085), (580, 49236), (638, 44760), (660, 43268), (696, 41030), (746, 38280), (870, 32824), (880, 32451), (957, 29840), (1119, 25520), (1160, 24618), (1276, 22380), (1320, 21634), (1392, 20515), (1492, 19140), (1595, 17904), (1740, 16412), (1865, 15312), (1914, 14920), (2238, 12760), (2320, 12309), (2552, 11190), (2640, 10817), (2984, 9570), (3190, 8952), (3480, 8206), (3730, 7656), (3828, 7460), (4103, 6960), (4476, 6380), (4785, 5968), (5104, 5595)]