20512101560

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{379}}^1\times {\mathrm{541}}^1$

素因数の和:1033

約数の個数: 128

約数和(自身を含む): 48268785600

約数和(自身を除く): 27756684040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 61, 82, 122, 164, 205, 244, 305, 328, 379, 410, 488, 541, 610, 758, 820, 1082, 1220, 1516, 1640, 1895, 2164, 2440, 2501, 2705, 3032, 3790, 4328, 5002, 5410, 7580, 10004, 10820, 12505, 15160, 15539, 20008, 21640, 22181, 23119, 25010, 31078, 33001, 44362, 46238, 50020, 62156, 66002, 77695, 88724, 92476, 100040, 110905, 115595, 124312, 132004, 155390, 165005, 177448, 184952, 205039, 221810, 231190, 264008, 310780, 330010, 410078, 443620, 462380, 621560, 660020, 820156, 887240, 924760, 947879, 1025195, 1320040, 1353041, 1640312, 1895758, 2050390, 2706082, 3791516, 4100780, 4739395, 5412164, 6765205, 7583032, 8201560, 8406599, 9478790, 10824328, 12507379, 13530410, 16813198, 18957580, 25014758, 27060820, 33626396, 37915160, 42032995, 50029516, 54121640, 62536895, 67252792, 84065990, 100059032, 125073790, 168131980, 250147580, 336263960, 500295160, 512802539, 1025605078, 2051210156, 2564012695, 4102420312, 5128025390, 10256050780, 20512101560]

約数ペア:

[(1, 20512101560), (2, 10256050780), (4, 5128025390), (5, 4102420312), (8, 2564012695), (10, 2051210156), (20, 1025605078), (40, 512802539), (41, 500295160), (61, 336263960), (82, 250147580), (122, 168131980), (164, 125073790), (205, 100059032), (244, 84065990), (305, 67252792), (328, 62536895), (379, 54121640), (410, 50029516), (488, 42032995), (541, 37915160), (610, 33626396), (758, 27060820), (820, 25014758), (1082, 18957580), (1220, 16813198), (1516, 13530410), (1640, 12507379), (1895, 10824328), (2164, 9478790), (2440, 8406599), (2501, 8201560), (2705, 7583032), (3032, 6765205), (3790, 5412164), (4328, 4739395), (5002, 4100780), (5410, 3791516), (7580, 2706082), (10004, 2050390), (10820, 1895758), (12505, 1640312), (15160, 1353041), (15539, 1320040), (20008, 1025195), (21640, 947879), (22181, 924760), (23119, 887240), (25010, 820156), (31078, 660020), (33001, 621560), (44362, 462380), (46238, 443620), (50020, 410078), (62156, 330010), (66002, 310780), (77695, 264008), (88724, 231190), (92476, 221810), (100040, 205039), (110905, 184952), (115595, 177448), (124312, 165005), (132004, 155390)]