17778978650

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{167}}^1\times {\mathrm{29989}}^1$

素因数の和:30239

約数の個数: 48

約数和(自身を含む): 33736590720

約数和(自身を除く): 15957612070

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 167, 334, 355, 710, 835, 1670, 1775, 3550, 4175, 8350, 11857, 23714, 29989, 59285, 59978, 118570, 149945, 296425, 299890, 592850, 749725, 1499450, 2129219, 4258438, 5008163, 10016326, 10646095, 21292190, 25040815, 50081630, 53230475, 106460950, 125204075, 250408150, 355579573, 711159146, 1777897865, 3555795730, 8889489325, 17778978650]

約数ペア:

[(1, 17778978650), (2, 8889489325), (5, 3555795730), (10, 1777897865), (25, 711159146), (50, 355579573), (71, 250408150), (142, 125204075), (167, 106460950), (334, 53230475), (355, 50081630), (710, 25040815), (835, 21292190), (1670, 10646095), (1775, 10016326), (3550, 5008163), (4175, 4258438), (8350, 2129219), (11857, 1499450), (23714, 749725), (29989, 592850), (59285, 299890), (59978, 296425), (118570, 149945)]