2119969840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1\times {\mathrm{2677}}^1$

素因数の和:3230

約数の個数: 80

約数和(自身を含む): 5200247520

約数和(自身を除く): 3080277680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 521, 760, 1042, 1520, 2084, 2605, 2677, 4168, 5210, 5354, 8336, 9899, 10420, 10708, 13385, 19798, 20840, 21416, 26770, 39596, 41680, 42832, 49495, 50863, 53540, 79192, 98990, 101726, 107080, 158384, 197980, 203452, 214160, 254315, 395960, 406904, 508630, 791920, 813808, 1017260, 1394717, 2034520, 2789434, 4069040, 5578868, 6973585, 11157736, 13947170, 22315472, 26499623, 27894340, 52999246, 55788680, 105998492, 111577360, 132498115, 211996984, 264996230, 423993968, 529992460, 1059984920, 2119969840]

約数ペア:

[(1, 2119969840), (2, 1059984920), (4, 529992460), (5, 423993968), (8, 264996230), (10, 211996984), (16, 132498115), (19, 111577360), (20, 105998492), (38, 55788680), (40, 52999246), (76, 27894340), (80, 26499623), (95, 22315472), (152, 13947170), (190, 11157736), (304, 6973585), (380, 5578868), (521, 4069040), (760, 2789434), (1042, 2034520), (1520, 1394717), (2084, 1017260), (2605, 813808), (2677, 791920), (4168, 508630), (5210, 406904), (5354, 395960), (8336, 254315), (9899, 214160), (10420, 203452), (10708, 197980), (13385, 158384), (19798, 107080), (20840, 101726), (21416, 98990), (26770, 79192), (39596, 53540), (41680, 50863), (42832, 49495)]