1994804984

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1\times {\mathrm{613}}^1$

素因数の和:988

約数の個数: 64

約数和(自身を含む): 4008192000

約数和(自身を除く): 2013387016

約数列:

[1, 2, 4, 8, 19, 38, 76, 79, 152, 158, 271, 316, 542, 613, 632, 1084, 1226, 1501, 2168, 2452, 3002, 4904, 5149, 6004, 10298, 11647, 12008, 20596, 21409, 23294, 41192, 42818, 46588, 48427, 85636, 93176, 96854, 166123, 171272, 193708, 332246, 387416, 406771, 664492, 813542, 920113, 1328984, 1627084, 1840226, 3156337, 3254168, 3680452, 6312674, 7360904, 12625348, 13123717, 25250696, 26247434, 52494868, 104989736, 249350623, 498701246, 997402492, 1994804984]

約数ペア:

[(1, 1994804984), (2, 997402492), (4, 498701246), (8, 249350623), (19, 104989736), (38, 52494868), (76, 26247434), (79, 25250696), (152, 13123717), (158, 12625348), (271, 7360904), (316, 6312674), (542, 3680452), (613, 3254168), (632, 3156337), (1084, 1840226), (1226, 1627084), (1501, 1328984), (2168, 920113), (2452, 813542), (3002, 664492), (4904, 406771), (5149, 387416), (6004, 332246), (10298, 193708), (11647, 171272), (12008, 166123), (20596, 96854), (21409, 93176), (23294, 85636), (41192, 48427), (42818, 46588)]