28756198520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{317}}^1\times {\mathrm{2551}}^1$

素因数の和:3013

約数の個数: 128

約数和(自身を含む): 74791157760

約数和(自身を除く): 46034959240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 127, 140, 254, 280, 317, 508, 634, 635, 889, 1016, 1268, 1270, 1585, 1778, 2219, 2536, 2540, 2551, 3170, 3556, 4438, 4445, 5080, 5102, 6340, 7112, 8876, 8890, 10204, 11095, 12680, 12755, 17752, 17780, 17857, 20408, 22190, 25510, 35560, 35714, 40259, 44380, 51020, 71428, 80518, 88760, 89285, 102040, 142856, 161036, 178570, 201295, 281813, 322072, 323977, 357140, 402590, 563626, 647954, 714280, 805180, 808667, 1127252, 1295908, 1409065, 1610360, 1617334, 1619885, 2254504, 2267839, 2591816, 2818130, 3234668, 3239770, 4043335, 4535678, 5636260, 5660669, 6469336, 6479540, 8086670, 9071356, 11272520, 11321338, 11339195, 12959080, 16173340, 18142712, 22642676, 22678390, 28303345, 32346680, 45285352, 45356780, 56606690, 90713560, 102700709, 113213380, 205401418, 226426760, 410802836, 513503545, 718904963, 821605672, 1027007090, 1437809926, 2054014180, 2875619852, 3594524815, 4108028360, 5751239704, 7189049630, 14378099260, 28756198520]

約数ペア:

[(1, 28756198520), (2, 14378099260), (4, 7189049630), (5, 5751239704), (7, 4108028360), (8, 3594524815), (10, 2875619852), (14, 2054014180), (20, 1437809926), (28, 1027007090), (35, 821605672), (40, 718904963), (56, 513503545), (70, 410802836), (127, 226426760), (140, 205401418), (254, 113213380), (280, 102700709), (317, 90713560), (508, 56606690), (634, 45356780), (635, 45285352), (889, 32346680), (1016, 28303345), (1268, 22678390), (1270, 22642676), (1585, 18142712), (1778, 16173340), (2219, 12959080), (2536, 11339195), (2540, 11321338), (2551, 11272520), (3170, 9071356), (3556, 8086670), (4438, 6479540), (4445, 6469336), (5080, 5660669), (5102, 5636260), (6340, 4535678), (7112, 4043335), (8876, 3239770), (8890, 3234668), (10204, 2818130), (11095, 2591816), (12680, 2267839), (12755, 2254504), (17752, 1619885), (17780, 1617334), (17857, 1610360), (20408, 1409065), (22190, 1295908), (25510, 1127252), (35560, 808667), (35714, 805180), (40259, 714280), (44380, 647954), (51020, 563626), (71428, 402590), (80518, 357140), (88760, 323977), (89285, 322072), (102040, 281813), (142856, 201295), (161036, 178570)]