20162481440

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{180797}}^1$

素因数の和:180870

約数の個数: 96

約数和(自身を含む): 51666282864

約数和(自身を除く): 31503801424

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 41, 68, 80, 82, 85, 136, 160, 164, 170, 205, 272, 328, 340, 410, 544, 656, 680, 697, 820, 1312, 1360, 1394, 1640, 2720, 2788, 3280, 3485, 5576, 6560, 6970, 11152, 13940, 22304, 27880, 55760, 111520, 180797, 361594, 723188, 903985, 1446376, 1807970, 2892752, 3073549, 3615940, 5785504, 6147098, 7231880, 7412677, 12294196, 14463760, 14825354, 15367745, 24588392, 28927520, 29650708, 30735490, 37063385, 49176784, 59301416, 61470980, 74126770, 98353568, 118602832, 122941960, 126015509, 148253540, 237205664, 245883920, 252031018, 296507080, 491767840, 504062036, 593014160, 630077545, 1008124072, 1186028320, 1260155090, 2016248144, 2520310180, 4032496288, 5040620360, 10081240720, 20162481440]

約数ペア:

[(1, 20162481440), (2, 10081240720), (4, 5040620360), (5, 4032496288), (8, 2520310180), (10, 2016248144), (16, 1260155090), (17, 1186028320), (20, 1008124072), (32, 630077545), (34, 593014160), (40, 504062036), (41, 491767840), (68, 296507080), (80, 252031018), (82, 245883920), (85, 237205664), (136, 148253540), (160, 126015509), (164, 122941960), (170, 118602832), (205, 98353568), (272, 74126770), (328, 61470980), (340, 59301416), (410, 49176784), (544, 37063385), (656, 30735490), (680, 29650708), (697, 28927520), (820, 24588392), (1312, 15367745), (1360, 14825354), (1394, 14463760), (1640, 12294196), (2720, 7412677), (2788, 7231880), (3280, 6147098), (3485, 5785504), (5576, 3615940), (6560, 3073549), (6970, 2892752), (11152, 1807970), (13940, 1446376), (22304, 903985), (27880, 723188), (55760, 361594), (111520, 180797)]