20585700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:366

約数の個数: 108

約数和(自身を含む): 65503620

約数和(自身を除く): 44917920

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 89, 90, 100, 150, 178, 180, 225, 257, 267, 300, 356, 445, 450, 514, 534, 771, 801, 890, 900, 1028, 1068, 1285, 1335, 1542, 1602, 1780, 2225, 2313, 2570, 2670, 3084, 3204, 3855, 4005, 4450, 4626, 5140, 5340, 6425, 6675, 7710, 8010, 8900, 9252, 11565, 12850, 13350, 15420, 16020, 19275, 20025, 22873, 23130, 25700, 26700, 38550, 40050, 45746, 46260, 57825, 68619, 77100, 80100, 91492, 114365, 115650, 137238, 205857, 228730, 231300, 274476, 343095, 411714, 457460, 571825, 686190, 823428, 1029285, 1143650, 1372380, 1715475, 2058570, 2287300, 3430950, 4117140, 5146425, 6861900, 10292850, 20585700]

約数ペア:

[(1, 20585700), (2, 10292850), (3, 6861900), (4, 5146425), (5, 4117140), (6, 3430950), (9, 2287300), (10, 2058570), (12, 1715475), (15, 1372380), (18, 1143650), (20, 1029285), (25, 823428), (30, 686190), (36, 571825), (45, 457460), (50, 411714), (60, 343095), (75, 274476), (89, 231300), (90, 228730), (100, 205857), (150, 137238), (178, 115650), (180, 114365), (225, 91492), (257, 80100), (267, 77100), (300, 68619), (356, 57825), (445, 46260), (450, 45746), (514, 40050), (534, 38550), (771, 26700), (801, 25700), (890, 23130), (900, 22873), (1028, 20025), (1068, 19275), (1285, 16020), (1335, 15420), (1542, 13350), (1602, 12850), (1780, 11565), (2225, 9252), (2313, 8900), (2570, 8010), (2670, 7710), (3084, 6675), (3204, 6425), (3855, 5340), (4005, 5140), (4450, 4626)]