207870640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{839}}^1$

素因数の和:1034

約数の個数: 80

約数和(自身を含む): 512467200

約数和(自身を除く): 304596560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 163, 190, 304, 326, 380, 652, 760, 815, 839, 1304, 1520, 1630, 1678, 2608, 3097, 3260, 3356, 4195, 6194, 6520, 6712, 8390, 12388, 13040, 13424, 15485, 15941, 16780, 24776, 30970, 31882, 33560, 49552, 61940, 63764, 67120, 79705, 123880, 127528, 136757, 159410, 247760, 255056, 273514, 318820, 547028, 637640, 683785, 1094056, 1275280, 1367570, 2188112, 2598383, 2735140, 5196766, 5470280, 10393532, 10940560, 12991915, 20787064, 25983830, 41574128, 51967660, 103935320, 207870640]

約数ペア:

[(1, 207870640), (2, 103935320), (4, 51967660), (5, 41574128), (8, 25983830), (10, 20787064), (16, 12991915), (19, 10940560), (20, 10393532), (38, 5470280), (40, 5196766), (76, 2735140), (80, 2598383), (95, 2188112), (152, 1367570), (163, 1275280), (190, 1094056), (304, 683785), (326, 637640), (380, 547028), (652, 318820), (760, 273514), (815, 255056), (839, 247760), (1304, 159410), (1520, 136757), (1630, 127528), (1678, 123880), (2608, 79705), (3097, 67120), (3260, 63764), (3356, 61940), (4195, 49552), (6194, 33560), (6520, 31882), (6712, 30970), (8390, 24776), (12388, 16780), (13040, 15941), (13424, 15485)]