2020502080

素因数分解:

$2^6\times 5^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:612

約数の個数: 112

約数和(自身を含む): 4894819776

約数和(自身を除く): 2874317696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 131, 157, 160, 262, 307, 314, 320, 524, 614, 628, 655, 785, 1048, 1228, 1256, 1310, 1535, 1570, 2096, 2456, 2512, 2620, 3070, 3140, 4192, 4912, 5024, 5240, 6140, 6280, 8384, 9824, 10048, 10480, 12280, 12560, 19648, 20567, 20960, 24560, 25120, 40217, 41134, 41920, 48199, 49120, 50240, 80434, 82268, 96398, 98240, 102835, 160868, 164536, 192796, 201085, 205670, 240995, 321736, 329072, 385592, 402170, 411340, 481990, 643472, 658144, 771184, 804340, 822680, 963980, 1286944, 1316288, 1542368, 1608680, 1645360, 1927960, 2573888, 3084736, 3217360, 3290720, 3855920, 6314069, 6434720, 6581440, 7711840, 12628138, 12869440, 15423680, 25256276, 31570345, 50512552, 63140690, 101025104, 126281380, 202050208, 252562760, 404100416, 505125520, 1010251040, 2020502080]

約数ペア:

[(1, 2020502080), (2, 1010251040), (4, 505125520), (5, 404100416), (8, 252562760), (10, 202050208), (16, 126281380), (20, 101025104), (32, 63140690), (40, 50512552), (64, 31570345), (80, 25256276), (131, 15423680), (157, 12869440), (160, 12628138), (262, 7711840), (307, 6581440), (314, 6434720), (320, 6314069), (524, 3855920), (614, 3290720), (628, 3217360), (655, 3084736), (785, 2573888), (1048, 1927960), (1228, 1645360), (1256, 1608680), (1310, 1542368), (1535, 1316288), (1570, 1286944), (2096, 963980), (2456, 822680), (2512, 804340), (2620, 771184), (3070, 658144), (3140, 643472), (4192, 481990), (4912, 411340), (5024, 402170), (5240, 385592), (6140, 329072), (6280, 321736), (8384, 240995), (9824, 205670), (10048, 201085), (10480, 192796), (12280, 164536), (12560, 160868), (19648, 102835), (20567, 98240), (20960, 96398), (24560, 82268), (25120, 80434), (40217, 50240), (41134, 49120), (41920, 48199)]