181291220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:353

約数の個数: 96

約数和(自身を含む): 431101440

約数和(自身を除く): 249810220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 89, 94, 110, 178, 188, 197, 220, 235, 356, 394, 445, 470, 517, 788, 890, 940, 979, 985, 1034, 1780, 1958, 1970, 2068, 2167, 2585, 3916, 3940, 4183, 4334, 4895, 5170, 8366, 8668, 9259, 9790, 10340, 10835, 16732, 17533, 18518, 19580, 20915, 21670, 35066, 37036, 41830, 43340, 46013, 46295, 70132, 83660, 87665, 92026, 92590, 101849, 175330, 184052, 185180, 192863, 203698, 230065, 350660, 385726, 407396, 460130, 509245, 771452, 824051, 920260, 964315, 1018490, 1648102, 1928630, 2036980, 3296204, 3857260, 4120255, 8240510, 9064561, 16481020, 18129122, 36258244, 45322805, 90645610, 181291220]

約数ペア:

[(1, 181291220), (2, 90645610), (4, 45322805), (5, 36258244), (10, 18129122), (11, 16481020), (20, 9064561), (22, 8240510), (44, 4120255), (47, 3857260), (55, 3296204), (89, 2036980), (94, 1928630), (110, 1648102), (178, 1018490), (188, 964315), (197, 920260), (220, 824051), (235, 771452), (356, 509245), (394, 460130), (445, 407396), (470, 385726), (517, 350660), (788, 230065), (890, 203698), (940, 192863), (979, 185180), (985, 184052), (1034, 175330), (1780, 101849), (1958, 92590), (1970, 92026), (2068, 87665), (2167, 83660), (2585, 70132), (3916, 46295), (3940, 46013), (4183, 43340), (4334, 41830), (4895, 37036), (5170, 35066), (8366, 21670), (8668, 20915), (9259, 19580), (9790, 18518), (10340, 17533), (10835, 16732)]