2028163840

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{647}}^1$

素因数の和:778

約数の個数: 144

約数和(自身を含む): 5086126080

約数和(自身を除く): 3057962240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 79, 80, 124, 128, 155, 158, 160, 248, 256, 310, 316, 320, 395, 496, 620, 632, 640, 647, 790, 992, 1240, 1264, 1280, 1294, 1580, 1984, 2449, 2480, 2528, 2588, 3160, 3235, 3968, 4898, 4960, 5056, 5176, 6320, 6470, 7936, 9796, 9920, 10112, 10352, 12245, 12640, 12940, 19592, 19840, 20057, 20224, 20704, 24490, 25280, 25880, 39184, 39680, 40114, 41408, 48980, 50560, 51113, 51760, 78368, 80228, 82816, 97960, 100285, 101120, 102226, 103520, 156736, 160456, 165632, 195920, 200570, 204452, 207040, 255565, 313472, 320912, 391840, 401140, 408904, 414080, 511130, 626944, 641824, 783680, 802280, 817808, 828160, 1022260, 1283648, 1567360, 1584503, 1604560, 1635616, 2044520, 2567296, 3134720, 3169006, 3209120, 3271232, 4089040, 5134592, 6338012, 6418240, 6542464, 7922515, 8178080, 12676024, 12836480, 13084928, 15845030, 16356160, 25352048, 25672960, 31690060, 32712320, 50704096, 63380120, 65424640, 101408192, 126760240, 202816384, 253520480, 405632768, 507040960, 1014081920, 2028163840]

約数ペア:

[(1, 2028163840), (2, 1014081920), (4, 507040960), (5, 405632768), (8, 253520480), (10, 202816384), (16, 126760240), (20, 101408192), (31, 65424640), (32, 63380120), (40, 50704096), (62, 32712320), (64, 31690060), (79, 25672960), (80, 25352048), (124, 16356160), (128, 15845030), (155, 13084928), (158, 12836480), (160, 12676024), (248, 8178080), (256, 7922515), (310, 6542464), (316, 6418240), (320, 6338012), (395, 5134592), (496, 4089040), (620, 3271232), (632, 3209120), (640, 3169006), (647, 3134720), (790, 2567296), (992, 2044520), (1240, 1635616), (1264, 1604560), (1280, 1584503), (1294, 1567360), (1580, 1283648), (1984, 1022260), (2449, 828160), (2480, 817808), (2528, 802280), (2588, 783680), (3160, 641824), (3235, 626944), (3968, 511130), (4898, 414080), (4960, 408904), (5056, 401140), (5176, 391840), (6320, 320912), (6470, 313472), (7936, 255565), (9796, 207040), (9920, 204452), (10112, 200570), (10352, 195920), (12245, 165632), (12640, 160456), (12940, 156736), (19592, 103520), (19840, 102226), (20057, 101120), (20224, 100285), (20704, 97960), (24490, 82816), (25280, 80228), (25880, 78368), (39184, 51760), (39680, 51113), (40114, 50560), (41408, 48980)]