156728240

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{673}}^1$

素因数の和:798

約数の個数: 80

約数和(自身を含む): 379100736

約数和(自身を除く): 222372496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 71, 80, 82, 142, 164, 205, 284, 328, 355, 410, 568, 656, 673, 710, 820, 1136, 1346, 1420, 1640, 2692, 2840, 2911, 3280, 3365, 5384, 5680, 5822, 6730, 10768, 11644, 13460, 14555, 23288, 26920, 27593, 29110, 46576, 47783, 53840, 55186, 58220, 95566, 110372, 116440, 137965, 191132, 220744, 232880, 238915, 275930, 382264, 441488, 477830, 551860, 764528, 955660, 1103720, 1911320, 1959103, 2207440, 3822640, 3918206, 7836412, 9795515, 15672824, 19591030, 31345648, 39182060, 78364120, 156728240]

約数ペア:

[(1, 156728240), (2, 78364120), (4, 39182060), (5, 31345648), (8, 19591030), (10, 15672824), (16, 9795515), (20, 7836412), (40, 3918206), (41, 3822640), (71, 2207440), (80, 1959103), (82, 1911320), (142, 1103720), (164, 955660), (205, 764528), (284, 551860), (328, 477830), (355, 441488), (410, 382264), (568, 275930), (656, 238915), (673, 232880), (710, 220744), (820, 191132), (1136, 137965), (1346, 116440), (1420, 110372), (1640, 95566), (2692, 58220), (2840, 55186), (2911, 53840), (3280, 47783), (3365, 46576), (5384, 29110), (5680, 27593), (5822, 26920), (6730, 23288), (10768, 14555), (11644, 13460)]