12801920

素因数分解:

$2^7\times 5^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:343

約数の個数: 64

約数和(自身を含む): 31101840

約数和(自身を除く): 18299920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 128, 160, 166, 241, 320, 332, 415, 482, 640, 664, 830, 964, 1205, 1328, 1660, 1928, 2410, 2656, 3320, 3856, 4820, 5312, 6640, 7712, 9640, 10624, 13280, 15424, 19280, 20003, 26560, 30848, 38560, 40006, 53120, 77120, 80012, 100015, 154240, 160024, 200030, 320048, 400060, 640096, 800120, 1280192, 1600240, 2560384, 3200480, 6400960, 12801920]

約数ペア:

[(1, 12801920), (2, 6400960), (4, 3200480), (5, 2560384), (8, 1600240), (10, 1280192), (16, 800120), (20, 640096), (32, 400060), (40, 320048), (64, 200030), (80, 160024), (83, 154240), (128, 100015), (160, 80012), (166, 77120), (241, 53120), (320, 40006), (332, 38560), (415, 30848), (482, 26560), (640, 20003), (664, 19280), (830, 15424), (964, 13280), (1205, 10624), (1328, 9640), (1660, 7712), (1928, 6640), (2410, 5312), (2656, 4820), (3320, 3856)]