20346016880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{497701}}^1$

素因数の和:497794

約数の個数: 80

約数和(自身を含む): 54802962624

約数和(自身を除く): 34456945744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 73, 80, 112, 140, 146, 280, 292, 365, 511, 560, 584, 730, 1022, 1168, 1460, 2044, 2555, 2920, 4088, 5110, 5840, 8176, 10220, 20440, 40880, 497701, 995402, 1990804, 2488505, 3483907, 3981608, 4977010, 6967814, 7963216, 9954020, 13935628, 17419535, 19908040, 27871256, 34839070, 36332173, 39816080, 55742512, 69678140, 72664346, 139356280, 145328692, 181660865, 254325211, 278712560, 290657384, 363321730, 508650422, 581314768, 726643460, 1017300844, 1271626055, 1453286920, 2034601688, 2543252110, 2906573840, 4069203376, 5086504220, 10173008440, 20346016880]

約数ペア:

[(1, 20346016880), (2, 10173008440), (4, 5086504220), (5, 4069203376), (7, 2906573840), (8, 2543252110), (10, 2034601688), (14, 1453286920), (16, 1271626055), (20, 1017300844), (28, 726643460), (35, 581314768), (40, 508650422), (56, 363321730), (70, 290657384), (73, 278712560), (80, 254325211), (112, 181660865), (140, 145328692), (146, 139356280), (280, 72664346), (292, 69678140), (365, 55742512), (511, 39816080), (560, 36332173), (584, 34839070), (730, 27871256), (1022, 19908040), (1168, 17419535), (1460, 13935628), (2044, 9954020), (2555, 7963216), (2920, 6967814), (4088, 4977010), (5110, 3981608), (5840, 3483907), (8176, 2488505), (10220, 1990804), (20440, 995402), (40880, 497701)]