20187900

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{7477}}^1$

素因数の和:7500

約数の個数: 72

約数和(自身を含む): 64909040

約数和(自身を除く): 44721140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 90, 100, 108, 135, 150, 180, 225, 270, 300, 450, 540, 675, 900, 1350, 2700, 7477, 14954, 22431, 29908, 37385, 44862, 67293, 74770, 89724, 112155, 134586, 149540, 186925, 201879, 224310, 269172, 336465, 373850, 403758, 448620, 560775, 672930, 747700, 807516, 1009395, 1121550, 1345860, 1682325, 2018790, 2243100, 3364650, 4037580, 5046975, 6729300, 10093950, 20187900]

約数ペア:

[(1, 20187900), (2, 10093950), (3, 6729300), (4, 5046975), (5, 4037580), (6, 3364650), (9, 2243100), (10, 2018790), (12, 1682325), (15, 1345860), (18, 1121550), (20, 1009395), (25, 807516), (27, 747700), (30, 672930), (36, 560775), (45, 448620), (50, 403758), (54, 373850), (60, 336465), (75, 269172), (90, 224310), (100, 201879), (108, 186925), (135, 149540), (150, 134586), (180, 112155), (225, 89724), (270, 74770), (300, 67293), (450, 44862), (540, 37385), (675, 29908), (900, 22431), (1350, 14954), (2700, 7477)]