812778880

素因数分解:

$2^7\times 5^1\times {\mathrm{401}}^1\times {\mathrm{3167}}^1$

素因数の和:3587

約数の個数: 64

約数和(自身を含む): 1948510080

約数和(自身を除く): 1135731200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 401, 640, 802, 1604, 2005, 3167, 3208, 4010, 6334, 6416, 8020, 12668, 12832, 15835, 16040, 25336, 25664, 31670, 32080, 50672, 51328, 63340, 64160, 101344, 126680, 128320, 202688, 253360, 256640, 405376, 506720, 1013440, 1269967, 2026880, 2539934, 5079868, 6349835, 10159736, 12699670, 20319472, 25399340, 40638944, 50798680, 81277888, 101597360, 162555776, 203194720, 406389440, 812778880]

約数ペア:

[(1, 812778880), (2, 406389440), (4, 203194720), (5, 162555776), (8, 101597360), (10, 81277888), (16, 50798680), (20, 40638944), (32, 25399340), (40, 20319472), (64, 12699670), (80, 10159736), (128, 6349835), (160, 5079868), (320, 2539934), (401, 2026880), (640, 1269967), (802, 1013440), (1604, 506720), (2005, 405376), (3167, 256640), (3208, 253360), (4010, 202688), (6334, 128320), (6416, 126680), (8020, 101344), (12668, 64160), (12832, 63340), (15835, 51328), (16040, 50672), (25336, 32080), (25664, 31670)]