20195516556

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{952439}}^1$

素因数の和:952499

約数の個数: 72

約数和(自身を含む): 55470105600

約数和(自身を除く): 35274589044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 31, 36, 38, 57, 62, 76, 93, 114, 124, 171, 186, 228, 279, 342, 372, 558, 589, 684, 1116, 1178, 1767, 2356, 3534, 5301, 7068, 10602, 21204, 952439, 1904878, 2857317, 3809756, 5714634, 8571951, 11429268, 17143902, 18096341, 29525609, 34287804, 36192682, 54289023, 59051218, 72385364, 88576827, 108578046, 118102436, 162867069, 177153654, 217156092, 265730481, 325734138, 354307308, 531460962, 560986571, 651468276, 1062921924, 1121973142, 1682959713, 2243946284, 3365919426, 5048879139, 6731838852, 10097758278, 20195516556]

約数ペア:

[(1, 20195516556), (2, 10097758278), (3, 6731838852), (4, 5048879139), (6, 3365919426), (9, 2243946284), (12, 1682959713), (18, 1121973142), (19, 1062921924), (31, 651468276), (36, 560986571), (38, 531460962), (57, 354307308), (62, 325734138), (76, 265730481), (93, 217156092), (114, 177153654), (124, 162867069), (171, 118102436), (186, 108578046), (228, 88576827), (279, 72385364), (342, 59051218), (372, 54289023), (558, 36192682), (589, 34287804), (684, 29525609), (1116, 18096341), (1178, 17143902), (1767, 11429268), (2356, 8571951), (3534, 5714634), (5301, 3809756), (7068, 2857317), (10602, 1904878), (21204, 952439)]