72737920

素因数分解:

$2^7\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1277}}^1$

素因数の和:1385

約数の個数: 64

約数和(自身を含む): 175980600

約数和(自身を除く): 103242680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 320, 356, 445, 640, 712, 890, 1277, 1424, 1780, 2554, 2848, 3560, 5108, 5696, 6385, 7120, 10216, 11392, 12770, 14240, 20432, 25540, 28480, 40864, 51080, 56960, 81728, 102160, 113653, 163456, 204320, 227306, 408640, 454612, 568265, 817280, 909224, 1136530, 1818448, 2273060, 3636896, 4546120, 7273792, 9092240, 14547584, 18184480, 36368960, 72737920]

約数ペア:

[(1, 72737920), (2, 36368960), (4, 18184480), (5, 14547584), (8, 9092240), (10, 7273792), (16, 4546120), (20, 3636896), (32, 2273060), (40, 1818448), (64, 1136530), (80, 909224), (89, 817280), (128, 568265), (160, 454612), (178, 408640), (320, 227306), (356, 204320), (445, 163456), (640, 113653), (712, 102160), (890, 81728), (1277, 56960), (1424, 51080), (1780, 40864), (2554, 28480), (2848, 25540), (3560, 20432), (5108, 14240), (5696, 12770), (6385, 11392), (7120, 10216)]