1991420160

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16729}}^1$

素因数の和:16784

約数の個数: 144

約数和(自身を含む): 6565655040

約数和(自身を除く): 4574234880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 256, 310, 320, 372, 384, 465, 480, 496, 620, 640, 744, 768, 930, 960, 992, 1240, 1280, 1488, 1860, 1920, 1984, 2480, 2976, 3720, 3840, 3968, 4960, 5952, 7440, 7936, 9920, 11904, 14880, 16729, 19840, 23808, 29760, 33458, 39680, 50187, 59520, 66916, 83645, 100374, 119040, 133832, 167290, 200748, 250935, 267664, 334580, 401496, 501870, 518599, 535328, 669160, 802992, 1003740, 1037198, 1070656, 1338320, 1555797, 1605984, 2007480, 2074396, 2141312, 2592995, 2676640, 3111594, 3211968, 4014960, 4148792, 4282624, 5185990, 5353280, 6223188, 6423936, 7778985, 8029920, 8297584, 10371980, 10706560, 12446376, 12847872, 15557970, 16059840, 16595168, 20743960, 21413120, 24892752, 31115940, 32119680, 33190336, 41487920, 49785504, 62231880, 64239360, 66380672, 82975840, 99571008, 124463760, 132761344, 165951680, 199142016, 248927520, 331903360, 398284032, 497855040, 663806720, 995710080, 1991420160]

約数ペア:

[(1, 1991420160), (2, 995710080), (3, 663806720), (4, 497855040), (5, 398284032), (6, 331903360), (8, 248927520), (10, 199142016), (12, 165951680), (15, 132761344), (16, 124463760), (20, 99571008), (24, 82975840), (30, 66380672), (31, 64239360), (32, 62231880), (40, 49785504), (48, 41487920), (60, 33190336), (62, 32119680), (64, 31115940), (80, 24892752), (93, 21413120), (96, 20743960), (120, 16595168), (124, 16059840), (128, 15557970), (155, 12847872), (160, 12446376), (186, 10706560), (192, 10371980), (240, 8297584), (248, 8029920), (256, 7778985), (310, 6423936), (320, 6223188), (372, 5353280), (384, 5185990), (465, 4282624), (480, 4148792), (496, 4014960), (620, 3211968), (640, 3111594), (744, 2676640), (768, 2592995), (930, 2141312), (960, 2074396), (992, 2007480), (1240, 1605984), (1280, 1555797), (1488, 1338320), (1860, 1070656), (1920, 1037198), (1984, 1003740), (2480, 802992), (2976, 669160), (3720, 535328), (3840, 518599), (3968, 501870), (4960, 401496), (5952, 334580), (7440, 267664), (7936, 250935), (9920, 200748), (11904, 167290), (14880, 133832), (16729, 119040), (19840, 100374), (23808, 83645), (29760, 66916), (33458, 59520), (39680, 50187)]