199629940

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1\times {\mathrm{499}}^1$

素因数の和:832

約数の個数: 48

約数和(自身を含む): 426888000

約数和(自身を除く): 227258060

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 241, 332, 415, 482, 499, 830, 964, 998, 1205, 1660, 1996, 2410, 2495, 4820, 4990, 9980, 20003, 40006, 41417, 80012, 82834, 100015, 120259, 165668, 200030, 207085, 240518, 400060, 414170, 481036, 601295, 828340, 1202590, 2405180, 9981497, 19962994, 39925988, 49907485, 99814970, 199629940]

約数ペア:

[(1, 199629940), (2, 99814970), (4, 49907485), (5, 39925988), (10, 19962994), (20, 9981497), (83, 2405180), (166, 1202590), (241, 828340), (332, 601295), (415, 481036), (482, 414170), (499, 400060), (830, 240518), (964, 207085), (998, 200030), (1205, 165668), (1660, 120259), (1996, 100015), (2410, 82834), (2495, 80012), (4820, 41417), (4990, 40006), (9980, 20003)]