209734840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:453

約数の個数: 128

約数和(自身を含む): 566046720

約数和(自身を除く): 356311880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 73, 124, 140, 146, 155, 217, 248, 280, 292, 310, 331, 365, 434, 511, 584, 620, 662, 730, 868, 1022, 1085, 1240, 1324, 1460, 1655, 1736, 2044, 2170, 2263, 2317, 2555, 2648, 2920, 3310, 4088, 4340, 4526, 4634, 5110, 6620, 8680, 9052, 9268, 10220, 10261, 11315, 11585, 13240, 15841, 18104, 18536, 20440, 20522, 22630, 23170, 24163, 31682, 41044, 45260, 46340, 48326, 51305, 63364, 71827, 79205, 82088, 90520, 92680, 96652, 102610, 120815, 126728, 143654, 158410, 169141, 193304, 205220, 241630, 287308, 316820, 338282, 359135, 410440, 483260, 574616, 633640, 676564, 718270, 749053, 845705, 966520, 1353128, 1436540, 1498106, 1691410, 2873080, 2996212, 3382820, 3745265, 5243371, 5992424, 6765640, 7490530, 10486742, 14981060, 20973484, 26216855, 29962120, 41946968, 52433710, 104867420, 209734840]

約数ペア:

[(1, 209734840), (2, 104867420), (4, 52433710), (5, 41946968), (7, 29962120), (8, 26216855), (10, 20973484), (14, 14981060), (20, 10486742), (28, 7490530), (31, 6765640), (35, 5992424), (40, 5243371), (56, 3745265), (62, 3382820), (70, 2996212), (73, 2873080), (124, 1691410), (140, 1498106), (146, 1436540), (155, 1353128), (217, 966520), (248, 845705), (280, 749053), (292, 718270), (310, 676564), (331, 633640), (365, 574616), (434, 483260), (511, 410440), (584, 359135), (620, 338282), (662, 316820), (730, 287308), (868, 241630), (1022, 205220), (1085, 193304), (1240, 169141), (1324, 158410), (1460, 143654), (1655, 126728), (1736, 120815), (2044, 102610), (2170, 96652), (2263, 92680), (2317, 90520), (2555, 82088), (2648, 79205), (2920, 71827), (3310, 63364), (4088, 51305), (4340, 48326), (4526, 46340), (4634, 45260), (5110, 41044), (6620, 31682), (8680, 24163), (9052, 23170), (9268, 22630), (10220, 20522), (10261, 20440), (11315, 18536), (11585, 18104), (13240, 15841)]