19005259760

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{461}}^1\times {\mathrm{1657}}^1$

素因数の和:2442

約数の個数: 80

約数和(自身を含む): 44452279872

約数和(自身を除く): 25447020112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 461, 622, 922, 1244, 1555, 1657, 1844, 2305, 2488, 3110, 3314, 3688, 4610, 4976, 6220, 6628, 7376, 8285, 9220, 12440, 13256, 16570, 18440, 24880, 26512, 33140, 36880, 66280, 132560, 143371, 286742, 515327, 573484, 716855, 763877, 1030654, 1146968, 1433710, 1527754, 2061308, 2293936, 2576635, 2867420, 3055508, 3819385, 4122616, 5153270, 5734840, 6111016, 7638770, 8245232, 10306540, 11469680, 12222032, 15277540, 20613080, 30555080, 41226160, 61110160, 237565747, 475131494, 950262988, 1187828735, 1900525976, 2375657470, 3801051952, 4751314940, 9502629880, 19005259760]

約数ペア:

[(1, 19005259760), (2, 9502629880), (4, 4751314940), (5, 3801051952), (8, 2375657470), (10, 1900525976), (16, 1187828735), (20, 950262988), (40, 475131494), (80, 237565747), (311, 61110160), (461, 41226160), (622, 30555080), (922, 20613080), (1244, 15277540), (1555, 12222032), (1657, 11469680), (1844, 10306540), (2305, 8245232), (2488, 7638770), (3110, 6111016), (3314, 5734840), (3688, 5153270), (4610, 4122616), (4976, 3819385), (6220, 3055508), (6628, 2867420), (7376, 2576635), (8285, 2293936), (9220, 2061308), (12440, 1527754), (13256, 1433710), (16570, 1146968), (18440, 1030654), (24880, 763877), (26512, 716855), (33140, 573484), (36880, 515327), (66280, 286742), (132560, 143371)]