20443950

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{181}}^1\times {\mathrm{251}}^1$

素因数の和:450

約数の個数: 72

約数和(自身を含む): 55449576

約数和(自身を除く): 35005626

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 181, 225, 251, 362, 450, 502, 543, 753, 905, 1086, 1255, 1506, 1629, 1810, 2259, 2510, 2715, 3258, 3765, 4518, 4525, 5430, 6275, 7530, 8145, 9050, 11295, 12550, 13575, 16290, 18825, 22590, 27150, 37650, 40725, 45431, 56475, 81450, 90862, 112950, 136293, 227155, 272586, 408879, 454310, 681465, 817758, 1135775, 1362930, 2044395, 2271550, 3407325, 4088790, 6814650, 10221975, 20443950]

約数ペア:

[(1, 20443950), (2, 10221975), (3, 6814650), (5, 4088790), (6, 3407325), (9, 2271550), (10, 2044395), (15, 1362930), (18, 1135775), (25, 817758), (30, 681465), (45, 454310), (50, 408879), (75, 272586), (90, 227155), (150, 136293), (181, 112950), (225, 90862), (251, 81450), (362, 56475), (450, 45431), (502, 40725), (543, 37650), (753, 27150), (905, 22590), (1086, 18825), (1255, 16290), (1506, 13575), (1629, 12550), (1810, 11295), (2259, 9050), (2510, 8145), (2715, 7530), (3258, 6275), (3765, 5430), (4518, 4525)]