71228520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17987}}^1$

素因数の和:18015

約数の個数: 96

約数和(自身を含む): 252551520

約数和(自身を除く): 181323000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 17987, 35974, 53961, 71948, 89935, 107922, 143896, 161883, 179870, 197857, 215844, 269805, 323766, 359740, 395714, 431688, 539610, 593571, 647532, 719480, 791428, 809415, 989285, 1079220, 1187142, 1295064, 1582856, 1618830, 1780713, 1978570, 2158440, 2374284, 2967855, 3237660, 3561426, 3957140, 4748568, 5935710, 6475320, 7122852, 7914280, 8903565, 11871420, 14245704, 17807130, 23742840, 35614260, 71228520]

約数ペア:

[(1, 71228520), (2, 35614260), (3, 23742840), (4, 17807130), (5, 14245704), (6, 11871420), (8, 8903565), (9, 7914280), (10, 7122852), (11, 6475320), (12, 5935710), (15, 4748568), (18, 3957140), (20, 3561426), (22, 3237660), (24, 2967855), (30, 2374284), (33, 2158440), (36, 1978570), (40, 1780713), (44, 1618830), (45, 1582856), (55, 1295064), (60, 1187142), (66, 1079220), (72, 989285), (88, 809415), (90, 791428), (99, 719480), (110, 647532), (120, 593571), (132, 539610), (165, 431688), (180, 395714), (198, 359740), (220, 323766), (264, 269805), (330, 215844), (360, 197857), (396, 179870), (440, 161883), (495, 143896), (660, 107922), (792, 89935), (990, 71948), (1320, 53961), (1980, 35974), (3960, 17987)]