19995808

素因数分解:

$2^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:182

約数の個数: 96

約数和(自身を含む): 48988800

約数和(自身を除く): 28992992

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 59, 68, 89, 112, 118, 119, 136, 178, 224, 236, 238, 272, 356, 413, 472, 476, 544, 623, 712, 826, 944, 952, 1003, 1246, 1424, 1513, 1652, 1888, 1904, 2006, 2492, 2848, 3026, 3304, 3808, 4012, 4984, 5251, 6052, 6608, 7021, 8024, 9968, 10502, 10591, 12104, 13216, 14042, 16048, 19936, 21004, 21182, 24208, 28084, 32096, 36757, 42008, 42364, 48416, 56168, 73514, 84016, 84728, 89267, 112336, 147028, 168032, 169456, 178534, 224672, 294056, 338912, 357068, 588112, 624869, 714136, 1176224, 1249738, 1428272, 2499476, 2856544, 4998952, 9997904, 19995808]

約数ペア:

[(1, 19995808), (2, 9997904), (4, 4998952), (7, 2856544), (8, 2499476), (14, 1428272), (16, 1249738), (17, 1176224), (28, 714136), (32, 624869), (34, 588112), (56, 357068), (59, 338912), (68, 294056), (89, 224672), (112, 178534), (118, 169456), (119, 168032), (136, 147028), (178, 112336), (224, 89267), (236, 84728), (238, 84016), (272, 73514), (356, 56168), (413, 48416), (472, 42364), (476, 42008), (544, 36757), (623, 32096), (712, 28084), (826, 24208), (944, 21182), (952, 21004), (1003, 19936), (1246, 16048), (1424, 14042), (1513, 13216), (1652, 12104), (1888, 10591), (1904, 10502), (2006, 9968), (2492, 8024), (2848, 7021), (3026, 6608), (3304, 6052), (3808, 5251), (4012, 4984)]