20481900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{1019}}^1$

素因数の和:1103

約数の個数: 72

約数和(自身を含む): 60204480

約数和(自身を除く): 39722580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 67, 75, 100, 134, 150, 201, 268, 300, 335, 402, 670, 804, 1005, 1019, 1340, 1675, 2010, 2038, 3057, 3350, 4020, 4076, 5025, 5095, 6114, 6700, 10050, 10190, 12228, 15285, 20100, 20380, 25475, 30570, 50950, 61140, 68273, 76425, 101900, 136546, 152850, 204819, 273092, 305700, 341365, 409638, 682730, 819276, 1024095, 1365460, 1706825, 2048190, 3413650, 4096380, 5120475, 6827300, 10240950, 20481900]

約数ペア:

[(1, 20481900), (2, 10240950), (3, 6827300), (4, 5120475), (5, 4096380), (6, 3413650), (10, 2048190), (12, 1706825), (15, 1365460), (20, 1024095), (25, 819276), (30, 682730), (50, 409638), (60, 341365), (67, 305700), (75, 273092), (100, 204819), (134, 152850), (150, 136546), (201, 101900), (268, 76425), (300, 68273), (335, 61140), (402, 50950), (670, 30570), (804, 25475), (1005, 20380), (1019, 20100), (1340, 15285), (1675, 12228), (2010, 10190), (2038, 10050), (3057, 6700), (3350, 6114), (4020, 5095), (4076, 5025)]