199517940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{18787}}^1$

素因数の和:18861

約数の個数: 72

約数和(自身を含む): 615494880

約数和(自身を除く): 415976940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 90, 118, 177, 180, 236, 295, 354, 531, 590, 708, 885, 1062, 1180, 1770, 2124, 2655, 3540, 5310, 10620, 18787, 37574, 56361, 75148, 93935, 112722, 169083, 187870, 225444, 281805, 338166, 375740, 563610, 676332, 845415, 1108433, 1127220, 1690830, 2216866, 3325299, 3381660, 4433732, 5542165, 6650598, 9975897, 11084330, 13301196, 16626495, 19951794, 22168660, 33252990, 39903588, 49879485, 66505980, 99758970, 199517940]

約数ペア:

[(1, 199517940), (2, 99758970), (3, 66505980), (4, 49879485), (5, 39903588), (6, 33252990), (9, 22168660), (10, 19951794), (12, 16626495), (15, 13301196), (18, 11084330), (20, 9975897), (30, 6650598), (36, 5542165), (45, 4433732), (59, 3381660), (60, 3325299), (90, 2216866), (118, 1690830), (177, 1127220), (180, 1108433), (236, 845415), (295, 676332), (354, 563610), (531, 375740), (590, 338166), (708, 281805), (885, 225444), (1062, 187870), (1180, 169083), (1770, 112722), (2124, 93935), (2655, 75148), (3540, 56361), (5310, 37574), (10620, 18787)]