221636280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{613}}^1$

素因数の和:781

約数の個数: 128

約数和(自身を含む): 700254720

約数和(自身を除く): 478618440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 131, 138, 184, 230, 262, 276, 345, 393, 460, 524, 552, 613, 655, 690, 786, 920, 1048, 1226, 1310, 1380, 1572, 1839, 1965, 2452, 2620, 2760, 3013, 3065, 3144, 3678, 3930, 4904, 5240, 6026, 6130, 7356, 7860, 9039, 9195, 12052, 12260, 14099, 14712, 15065, 15720, 18078, 18390, 24104, 24520, 28198, 30130, 36156, 36780, 42297, 45195, 56396, 60260, 70495, 72312, 73560, 80303, 84594, 90390, 112792, 120520, 140990, 160606, 169188, 180780, 211485, 240909, 281980, 321212, 338376, 361560, 401515, 422970, 481818, 563960, 642424, 803030, 845940, 963636, 1204545, 1606060, 1691880, 1846969, 1927272, 2409090, 3212120, 3693938, 4818180, 5540907, 7387876, 9234845, 9636360, 11081814, 14775752, 18469690, 22163628, 27704535, 36939380, 44327256, 55409070, 73878760, 110818140, 221636280]

約数ペア:

[(1, 221636280), (2, 110818140), (3, 73878760), (4, 55409070), (5, 44327256), (6, 36939380), (8, 27704535), (10, 22163628), (12, 18469690), (15, 14775752), (20, 11081814), (23, 9636360), (24, 9234845), (30, 7387876), (40, 5540907), (46, 4818180), (60, 3693938), (69, 3212120), (92, 2409090), (115, 1927272), (120, 1846969), (131, 1691880), (138, 1606060), (184, 1204545), (230, 963636), (262, 845940), (276, 803030), (345, 642424), (393, 563960), (460, 481818), (524, 422970), (552, 401515), (613, 361560), (655, 338376), (690, 321212), (786, 281980), (920, 240909), (1048, 211485), (1226, 180780), (1310, 169188), (1380, 160606), (1572, 140990), (1839, 120520), (1965, 112792), (2452, 90390), (2620, 84594), (2760, 80303), (3013, 73560), (3065, 72312), (3144, 70495), (3678, 60260), (3930, 56396), (4904, 45195), (5240, 42297), (6026, 36780), (6130, 36156), (7356, 30130), (7860, 28198), (9039, 24520), (9195, 24104), (12052, 18390), (12260, 18078), (14099, 15720), (14712, 15065)]