1273307680

素因数分解:

$2^5\times 5^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1\times {\mathrm{293}}^1$

素因数の和:638

約数の個数: 96

約数和(自身を含む): 3055240944

約数和(自身を除く): 1781933264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 157, 160, 173, 293, 314, 346, 586, 628, 692, 785, 865, 1172, 1256, 1384, 1465, 1570, 1730, 2344, 2512, 2768, 2930, 3140, 3460, 4688, 5024, 5536, 5860, 6280, 6920, 9376, 11720, 12560, 13840, 23440, 25120, 27161, 27680, 46001, 46880, 50689, 54322, 92002, 101378, 108644, 135805, 184004, 202756, 217288, 230005, 253445, 271610, 368008, 405512, 434576, 460010, 506890, 543220, 736016, 811024, 869152, 920020, 1013780, 1086440, 1472032, 1622048, 1840040, 2027560, 2172880, 3680080, 4055120, 4345760, 7360160, 7958173, 8110240, 15916346, 31832692, 39790865, 63665384, 79581730, 127330768, 159163460, 254661536, 318326920, 636653840, 1273307680]

約数ペア:

[(1, 1273307680), (2, 636653840), (4, 318326920), (5, 254661536), (8, 159163460), (10, 127330768), (16, 79581730), (20, 63665384), (32, 39790865), (40, 31832692), (80, 15916346), (157, 8110240), (160, 7958173), (173, 7360160), (293, 4345760), (314, 4055120), (346, 3680080), (586, 2172880), (628, 2027560), (692, 1840040), (785, 1622048), (865, 1472032), (1172, 1086440), (1256, 1013780), (1384, 920020), (1465, 869152), (1570, 811024), (1730, 736016), (2344, 543220), (2512, 506890), (2768, 460010), (2930, 434576), (3140, 405512), (3460, 368008), (4688, 271610), (5024, 253445), (5536, 230005), (5860, 217288), (6280, 202756), (6920, 184004), (9376, 135805), (11720, 108644), (12560, 101378), (13840, 92002), (23440, 54322), (25120, 50689), (27161, 46880), (27680, 46001)]