78874220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{3803}}^1$

素因数の和:3890

約数の個数: 48

約数和(自身を含む): 178301088

約数和(自身を除く): 99426868

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 61, 68, 85, 122, 170, 244, 305, 340, 610, 1037, 1220, 2074, 3803, 4148, 5185, 7606, 10370, 15212, 19015, 20740, 38030, 64651, 76060, 129302, 231983, 258604, 323255, 463966, 646510, 927932, 1159915, 1293020, 2319830, 3943711, 4639660, 7887422, 15774844, 19718555, 39437110, 78874220]

約数ペア:

[(1, 78874220), (2, 39437110), (4, 19718555), (5, 15774844), (10, 7887422), (17, 4639660), (20, 3943711), (34, 2319830), (61, 1293020), (68, 1159915), (85, 927932), (122, 646510), (170, 463966), (244, 323255), (305, 258604), (340, 231983), (610, 129302), (1037, 76060), (1220, 64651), (2074, 38030), (3803, 20740), (4148, 19015), (5185, 15212), (7606, 10370)]