20688749460

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{191}}^1\times {\mathrm{66863}}^1$

素因数の和:67075

約数の個数: 120

約数和(自身を含む): 65242146816

約数和(自身を除く): 44553397356

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 191, 270, 324, 382, 405, 540, 573, 764, 810, 955, 1146, 1620, 1719, 1910, 2292, 2865, 3438, 3820, 5157, 5730, 6876, 8595, 10314, 11460, 15471, 17190, 20628, 25785, 30942, 34380, 51570, 61884, 66863, 77355, 103140, 133726, 154710, 200589, 267452, 309420, 334315, 401178, 601767, 668630, 802356, 1002945, 1203534, 1337260, 1805301, 2005890, 2407068, 3008835, 3610602, 4011780, 5415903, 6017670, 7221204, 9026505, 10831806, 12035340, 12770833, 18053010, 21663612, 25541666, 27079515, 36106020, 38312499, 51083332, 54159030, 63854165, 76624998, 108318060, 114937497, 127708330, 153249996, 191562495, 229874994, 255416660, 344812491, 383124990, 459749988, 574687485, 689624982, 766249980, 1034437473, 1149374970, 1379249964, 1724062455, 2068874946, 2298749940, 3448124910, 4137749892, 5172187365, 6896249820, 10344374730, 20688749460]

約数ペア:

[(1, 20688749460), (2, 10344374730), (3, 6896249820), (4, 5172187365), (5, 4137749892), (6, 3448124910), (9, 2298749940), (10, 2068874946), (12, 1724062455), (15, 1379249964), (18, 1149374970), (20, 1034437473), (27, 766249980), (30, 689624982), (36, 574687485), (45, 459749988), (54, 383124990), (60, 344812491), (81, 255416660), (90, 229874994), (108, 191562495), (135, 153249996), (162, 127708330), (180, 114937497), (191, 108318060), (270, 76624998), (324, 63854165), (382, 54159030), (405, 51083332), (540, 38312499), (573, 36106020), (764, 27079515), (810, 25541666), (955, 21663612), (1146, 18053010), (1620, 12770833), (1719, 12035340), (1910, 10831806), (2292, 9026505), (2865, 7221204), (3438, 6017670), (3820, 5415903), (5157, 4011780), (5730, 3610602), (6876, 3008835), (8595, 2407068), (10314, 2005890), (11460, 1805301), (15471, 1337260), (17190, 1203534), (20628, 1002945), (25785, 802356), (30942, 668630), (34380, 601767), (51570, 401178), (61884, 334315), (66863, 309420), (77355, 267452), (103140, 200589), (133726, 154710)]