20161937120

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1381}}^1\times {\mathrm{7019}}^1$

素因数の和:8428

約数の個数: 96

約数和(自身を含む): 51341078880

約数和(自身を除く): 31179141760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 1381, 2080, 2762, 5524, 6905, 7019, 11048, 13810, 14038, 17953, 22096, 27620, 28076, 35095, 35906, 44192, 55240, 56152, 70190, 71812, 89765, 91247, 110480, 112304, 140380, 143624, 179530, 182494, 220960, 224608, 280760, 287248, 359060, 364988, 456235, 561520, 574496, 718120, 729976, 912470, 1123040, 1436240, 1459952, 1824940, 2872480, 2919904, 3649880, 7299760, 9693239, 14599520, 19386478, 38772956, 48466195, 77545912, 96932390, 126012107, 155091824, 193864780, 252024214, 310183648, 387729560, 504048428, 630060535, 775459120, 1008096856, 1260121070, 1550918240, 2016193712, 2520242140, 4032387424, 5040484280, 10080968560, 20161937120]

約数ペア:

[(1, 20161937120), (2, 10080968560), (4, 5040484280), (5, 4032387424), (8, 2520242140), (10, 2016193712), (13, 1550918240), (16, 1260121070), (20, 1008096856), (26, 775459120), (32, 630060535), (40, 504048428), (52, 387729560), (65, 310183648), (80, 252024214), (104, 193864780), (130, 155091824), (160, 126012107), (208, 96932390), (260, 77545912), (416, 48466195), (520, 38772956), (1040, 19386478), (1381, 14599520), (2080, 9693239), (2762, 7299760), (5524, 3649880), (6905, 2919904), (7019, 2872480), (11048, 1824940), (13810, 1459952), (14038, 1436240), (17953, 1123040), (22096, 912470), (27620, 729976), (28076, 718120), (35095, 574496), (35906, 561520), (44192, 456235), (55240, 364988), (56152, 359060), (70190, 287248), (71812, 280760), (89765, 224608), (91247, 220960), (110480, 182494), (112304, 179530), (140380, 143624)]