399398720

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:201

約数の個数: 224

約数和(自身を含む): 1148974080

約数和(自身を除く): 749575360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 56, 61, 64, 70, 74, 79, 80, 112, 122, 140, 148, 158, 160, 185, 224, 244, 259, 280, 296, 305, 316, 320, 370, 395, 427, 448, 488, 518, 553, 560, 592, 610, 632, 740, 790, 854, 976, 1036, 1106, 1120, 1184, 1220, 1264, 1295, 1480, 1580, 1708, 1952, 2072, 2135, 2212, 2240, 2257, 2368, 2440, 2528, 2590, 2765, 2923, 2960, 3160, 3416, 3904, 4144, 4270, 4424, 4514, 4819, 4880, 5056, 5180, 5530, 5846, 5920, 6320, 6832, 8288, 8540, 8848, 9028, 9638, 9760, 10360, 11060, 11285, 11692, 11840, 12640, 13664, 14615, 15799, 16576, 17080, 17696, 18056, 19276, 19520, 20461, 20720, 22120, 22570, 23384, 24095, 25280, 27328, 29230, 31598, 33733, 34160, 35392, 36112, 38552, 40922, 41440, 44240, 45140, 46768, 48190, 58460, 63196, 67466, 68320, 72224, 77104, 78995, 81844, 82880, 88480, 90280, 93536, 96380, 102305, 116920, 126392, 134932, 136640, 144448, 154208, 157990, 163688, 168665, 176960, 178303, 180560, 187072, 192760, 204610, 233840, 252784, 269864, 308416, 315980, 327376, 337330, 356606, 361120, 385520, 409220, 467680, 505568, 539728, 631960, 654752, 674660, 713212, 722240, 771040, 818440, 891515, 935360, 1011136, 1079456, 1248121, 1263920, 1309504, 1349320, 1426424, 1542080, 1636880, 1783030, 2158912, 2496242, 2527840, 2698640, 2852848, 3273760, 3566060, 4992484, 5055680, 5397280, 5705696, 6240605, 6547520, 7132120, 9984968, 10794560, 11411392, 12481210, 14264240, 19969936, 24962420, 28528480, 39939872, 49924840, 57056960, 79879744, 99849680, 199699360, 399398720]

約数ペア:

[(1, 399398720), (2, 199699360), (4, 99849680), (5, 79879744), (7, 57056960), (8, 49924840), (10, 39939872), (14, 28528480), (16, 24962420), (20, 19969936), (28, 14264240), (32, 12481210), (35, 11411392), (37, 10794560), (40, 9984968), (56, 7132120), (61, 6547520), (64, 6240605), (70, 5705696), (74, 5397280), (79, 5055680), (80, 4992484), (112, 3566060), (122, 3273760), (140, 2852848), (148, 2698640), (158, 2527840), (160, 2496242), (185, 2158912), (224, 1783030), (244, 1636880), (259, 1542080), (280, 1426424), (296, 1349320), (305, 1309504), (316, 1263920), (320, 1248121), (370, 1079456), (395, 1011136), (427, 935360), (448, 891515), (488, 818440), (518, 771040), (553, 722240), (560, 713212), (592, 674660), (610, 654752), (632, 631960), (740, 539728), (790, 505568), (854, 467680), (976, 409220), (1036, 385520), (1106, 361120), (1120, 356606), (1184, 337330), (1220, 327376), (1264, 315980), (1295, 308416), (1480, 269864), (1580, 252784), (1708, 233840), (1952, 204610), (2072, 192760), (2135, 187072), (2212, 180560), (2240, 178303), (2257, 176960), (2368, 168665), (2440, 163688), (2528, 157990), (2590, 154208), (2765, 144448), (2923, 136640), (2960, 134932), (3160, 126392), (3416, 116920), (3904, 102305), (4144, 96380), (4270, 93536), (4424, 90280), (4514, 88480), (4819, 82880), (4880, 81844), (5056, 78995), (5180, 77104), (5530, 72224), (5846, 68320), (5920, 67466), (6320, 63196), (6832, 58460), (8288, 48190), (8540, 46768), (8848, 45140), (9028, 44240), (9638, 41440), (9760, 40922), (10360, 38552), (11060, 36112), (11285, 35392), (11692, 34160), (11840, 33733), (12640, 31598), (13664, 29230), (14615, 27328), (15799, 25280), (16576, 24095), (17080, 23384), (17696, 22570), (18056, 22120), (19276, 20720), (19520, 20461)]