20846520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{733}}^1$

素因数の和:829

約数の個数: 96

約数和(自身を含む): 68702400

約数和(自身を除く): 47855880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 79, 90, 120, 158, 180, 237, 316, 360, 395, 474, 632, 711, 733, 790, 948, 1185, 1422, 1466, 1580, 1896, 2199, 2370, 2844, 2932, 3160, 3555, 3665, 4398, 4740, 5688, 5864, 6597, 7110, 7330, 8796, 9480, 10995, 13194, 14220, 14660, 17592, 21990, 26388, 28440, 29320, 32985, 43980, 52776, 57907, 65970, 87960, 115814, 131940, 173721, 231628, 263880, 289535, 347442, 463256, 521163, 579070, 694884, 868605, 1042326, 1158140, 1389768, 1737210, 2084652, 2316280, 2605815, 3474420, 4169304, 5211630, 6948840, 10423260, 20846520]

約数ペア:

[(1, 20846520), (2, 10423260), (3, 6948840), (4, 5211630), (5, 4169304), (6, 3474420), (8, 2605815), (9, 2316280), (10, 2084652), (12, 1737210), (15, 1389768), (18, 1158140), (20, 1042326), (24, 868605), (30, 694884), (36, 579070), (40, 521163), (45, 463256), (60, 347442), (72, 289535), (79, 263880), (90, 231628), (120, 173721), (158, 131940), (180, 115814), (237, 87960), (316, 65970), (360, 57907), (395, 52776), (474, 43980), (632, 32985), (711, 29320), (733, 28440), (790, 26388), (948, 21990), (1185, 17592), (1422, 14660), (1466, 14220), (1580, 13194), (1896, 10995), (2199, 9480), (2370, 8796), (2844, 7330), (2932, 7110), (3160, 6597), (3555, 5864), (3665, 5688), (4398, 4740)]