180801920

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{701}}^1$

素因数の和:764

約数の個数: 128

約数和(自身を含む): 481178880

約数和(自身を除く): 300376960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 640, 701, 806, 832, 992, 1040, 1240, 1402, 1612, 1664, 1984, 2015, 2080, 2480, 2804, 3224, 3505, 3968, 4030, 4160, 4960, 5608, 6448, 7010, 8060, 8320, 9113, 9920, 11216, 12896, 14020, 16120, 18226, 19840, 21731, 22432, 25792, 28040, 32240, 36452, 43462, 44864, 45565, 51584, 56080, 64480, 72904, 86924, 89728, 91130, 108655, 112160, 128960, 145808, 173848, 182260, 217310, 224320, 257920, 282503, 291616, 347696, 364520, 434620, 448640, 565006, 583232, 695392, 729040, 869240, 1130012, 1166464, 1390784, 1412515, 1458080, 1738480, 2260024, 2781568, 2825030, 2916160, 3476960, 4520048, 5650060, 5832320, 6953920, 9040096, 11300120, 13907840, 18080192, 22600240, 36160384, 45200480, 90400960, 180801920]

約数ペア:

[(1, 180801920), (2, 90400960), (4, 45200480), (5, 36160384), (8, 22600240), (10, 18080192), (13, 13907840), (16, 11300120), (20, 9040096), (26, 6953920), (31, 5832320), (32, 5650060), (40, 4520048), (52, 3476960), (62, 2916160), (64, 2825030), (65, 2781568), (80, 2260024), (104, 1738480), (124, 1458080), (128, 1412515), (130, 1390784), (155, 1166464), (160, 1130012), (208, 869240), (248, 729040), (260, 695392), (310, 583232), (320, 565006), (403, 448640), (416, 434620), (496, 364520), (520, 347696), (620, 291616), (640, 282503), (701, 257920), (806, 224320), (832, 217310), (992, 182260), (1040, 173848), (1240, 145808), (1402, 128960), (1612, 112160), (1664, 108655), (1984, 91130), (2015, 89728), (2080, 86924), (2480, 72904), (2804, 64480), (3224, 56080), (3505, 51584), (3968, 45565), (4030, 44864), (4160, 43462), (4960, 36452), (5608, 32240), (6448, 28040), (7010, 25792), (8060, 22432), (8320, 21731), (9113, 19840), (9920, 18226), (11216, 16120), (12896, 14020)]