20400581640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{683}}^1\times {\mathrm{248909}}^1$

素因数の和:249606

約数の個数: 64

約数和(自身を含む): 61291598400

約数和(自身を除く): 40891016760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 683, 1366, 2049, 2732, 3415, 4098, 5464, 6830, 8196, 10245, 13660, 16392, 20490, 27320, 40980, 81960, 248909, 497818, 746727, 995636, 1244545, 1493454, 1991272, 2489090, 2986908, 3733635, 4978180, 5973816, 7467270, 9956360, 14934540, 29869080, 170004847, 340009694, 510014541, 680019388, 850024235, 1020029082, 1360038776, 1700048470, 2040058164, 2550072705, 3400096940, 4080116328, 5100145410, 6800193880, 10200290820, 20400581640]

約数ペア:

[(1, 20400581640), (2, 10200290820), (3, 6800193880), (4, 5100145410), (5, 4080116328), (6, 3400096940), (8, 2550072705), (10, 2040058164), (12, 1700048470), (15, 1360038776), (20, 1020029082), (24, 850024235), (30, 680019388), (40, 510014541), (60, 340009694), (120, 170004847), (683, 29869080), (1366, 14934540), (2049, 9956360), (2732, 7467270), (3415, 5973816), (4098, 4978180), (5464, 3733635), (6830, 2986908), (8196, 2489090), (10245, 1991272), (13660, 1493454), (16392, 1244545), (20490, 995636), (27320, 746727), (40980, 497818), (81960, 248909)]