138420760

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1\times {\mathrm{241}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 318336480

約数和(自身を除く): 179915720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 173, 241, 332, 346, 415, 482, 664, 692, 830, 865, 964, 1205, 1384, 1660, 1730, 1928, 2410, 3320, 3460, 4820, 6920, 9640, 14359, 20003, 28718, 40006, 41693, 57436, 71795, 80012, 83386, 100015, 114872, 143590, 160024, 166772, 200030, 208465, 287180, 333544, 400060, 416930, 574360, 800120, 833860, 1667720, 3460519, 6921038, 13842076, 17302595, 27684152, 34605190, 69210380, 138420760]

約数ペア:

[(1, 138420760), (2, 69210380), (4, 34605190), (5, 27684152), (8, 17302595), (10, 13842076), (20, 6921038), (40, 3460519), (83, 1667720), (166, 833860), (173, 800120), (241, 574360), (332, 416930), (346, 400060), (415, 333544), (482, 287180), (664, 208465), (692, 200030), (830, 166772), (865, 160024), (964, 143590), (1205, 114872), (1384, 100015), (1660, 83386), (1730, 80012), (1928, 71795), (2410, 57436), (3320, 41693), (3460, 40006), (4820, 28718), (6920, 20003), (9640, 14359)]