20264800

素因数分解:

$2^5\times 5^2\times {\mathrm{73}}^1\times {\mathrm{347}}^1$

素因数の和:440

約数の個数: 72

約数和(自身を含む): 50293656

約数和(自身を除く): 30028856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 73, 80, 100, 146, 160, 200, 292, 347, 365, 400, 584, 694, 730, 800, 1168, 1388, 1460, 1735, 1825, 2336, 2776, 2920, 3470, 3650, 5552, 5840, 6940, 7300, 8675, 11104, 11680, 13880, 14600, 17350, 25331, 27760, 29200, 34700, 50662, 55520, 58400, 69400, 101324, 126655, 138800, 202648, 253310, 277600, 405296, 506620, 633275, 810592, 1013240, 1266550, 2026480, 2533100, 4052960, 5066200, 10132400, 20264800]

約数ペア:

[(1, 20264800), (2, 10132400), (4, 5066200), (5, 4052960), (8, 2533100), (10, 2026480), (16, 1266550), (20, 1013240), (25, 810592), (32, 633275), (40, 506620), (50, 405296), (73, 277600), (80, 253310), (100, 202648), (146, 138800), (160, 126655), (200, 101324), (292, 69400), (347, 58400), (365, 55520), (400, 50662), (584, 34700), (694, 29200), (730, 27760), (800, 25331), (1168, 17350), (1388, 14600), (1460, 13880), (1735, 11680), (1825, 11104), (2336, 8675), (2776, 7300), (2920, 6940), (3470, 5840), (3650, 5552)]