81900540280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{66653}}^1$

素因数の和:66833

約数の個数: 128

約数和(自身を含む): 211639780800

約数和(自身を除く): 129739240520

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 139, 170, 221, 260, 278, 340, 442, 520, 556, 680, 695, 884, 1105, 1112, 1390, 1768, 1807, 2210, 2363, 2780, 3614, 4420, 4726, 5560, 7228, 8840, 9035, 9452, 11815, 14456, 18070, 18904, 23630, 30719, 36140, 47260, 61438, 66653, 72280, 94520, 122876, 133306, 153595, 245752, 266612, 307190, 333265, 533224, 614380, 666530, 866489, 1133101, 1228760, 1333060, 1732978, 2266202, 2666120, 3465956, 4332445, 4532404, 5665505, 6931912, 8664890, 9064808, 9264767, 11331010, 14730313, 17329780, 18529534, 22662020, 29460626, 34659560, 37059068, 45324040, 46323835, 58921252, 73651565, 74118136, 92647670, 117842504, 120441971, 147303130, 157501039, 185295340, 240883942, 294606260, 315002078, 370590680, 481767884, 589212520, 602209855, 630004156, 787505195, 963535768, 1204419710, 1260008312, 1575010390, 2047513507, 2408839420, 3150020780, 4095027014, 4817678840, 6300041560, 8190054028, 10237567535, 16380108056, 20475135070, 40950270140, 81900540280]

約数ペア:

[(1, 81900540280), (2, 40950270140), (4, 20475135070), (5, 16380108056), (8, 10237567535), (10, 8190054028), (13, 6300041560), (17, 4817678840), (20, 4095027014), (26, 3150020780), (34, 2408839420), (40, 2047513507), (52, 1575010390), (65, 1260008312), (68, 1204419710), (85, 963535768), (104, 787505195), (130, 630004156), (136, 602209855), (139, 589212520), (170, 481767884), (221, 370590680), (260, 315002078), (278, 294606260), (340, 240883942), (442, 185295340), (520, 157501039), (556, 147303130), (680, 120441971), (695, 117842504), (884, 92647670), (1105, 74118136), (1112, 73651565), (1390, 58921252), (1768, 46323835), (1807, 45324040), (2210, 37059068), (2363, 34659560), (2780, 29460626), (3614, 22662020), (4420, 18529534), (4726, 17329780), (5560, 14730313), (7228, 11331010), (8840, 9264767), (9035, 9064808), (9452, 8664890), (11815, 6931912), (14456, 5665505), (18070, 4532404), (18904, 4332445), (23630, 3465956), (30719, 2666120), (36140, 2266202), (47260, 1732978), (61438, 1333060), (66653, 1228760), (72280, 1133101), (94520, 866489), (122876, 666530), (133306, 614380), (153595, 533224), (245752, 333265), (266612, 307190)]