168647440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5231}}^1$

素因数の和:5288

約数の個数: 80

約数和(自身を含む): 435972096

約数和(自身を除く): 267324656

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 5231, 6448, 8060, 10462, 16120, 20924, 26155, 32240, 41848, 52310, 68003, 83696, 104620, 136006, 162161, 209240, 272012, 324322, 340015, 418480, 544024, 648644, 680030, 810805, 1088048, 1297288, 1360060, 1621610, 2108093, 2594576, 2720120, 3243220, 4216186, 5440240, 6486440, 8432372, 10540465, 12972880, 16864744, 21080930, 33729488, 42161860, 84323720, 168647440]

約数ペア:

[(1, 168647440), (2, 84323720), (4, 42161860), (5, 33729488), (8, 21080930), (10, 16864744), (13, 12972880), (16, 10540465), (20, 8432372), (26, 6486440), (31, 5440240), (40, 4216186), (52, 3243220), (62, 2720120), (65, 2594576), (80, 2108093), (104, 1621610), (124, 1360060), (130, 1297288), (155, 1088048), (208, 810805), (248, 680030), (260, 648644), (310, 544024), (403, 418480), (496, 340015), (520, 324322), (620, 272012), (806, 209240), (1040, 162161), (1240, 136006), (1612, 104620), (2015, 83696), (2480, 68003), (3224, 52310), (4030, 41848), (5231, 32240), (6448, 26155), (8060, 20924), (10462, 16120)]