205481600

素因数分解:

$2^7\times 5^2\times {\mathrm{157}}^1\times {\mathrm{409}}^1$

素因数の和:590

約数の個数: 96

約数和(自身を含む): 512085900

約数和(自身を除く): 306604300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 157, 160, 200, 314, 320, 400, 409, 628, 640, 785, 800, 818, 1256, 1570, 1600, 1636, 2045, 2512, 3140, 3200, 3272, 3925, 4090, 5024, 6280, 6544, 7850, 8180, 10048, 10225, 12560, 13088, 15700, 16360, 20096, 20450, 25120, 26176, 31400, 32720, 40900, 50240, 52352, 62800, 64213, 65440, 81800, 100480, 125600, 128426, 130880, 163600, 251200, 256852, 261760, 321065, 327200, 502400, 513704, 642130, 654400, 1027408, 1284260, 1308800, 1605325, 2054816, 2568520, 3210650, 4109632, 5137040, 6421300, 8219264, 10274080, 12842600, 20548160, 25685200, 41096320, 51370400, 102740800, 205481600]

約数ペア:

[(1, 205481600), (2, 102740800), (4, 51370400), (5, 41096320), (8, 25685200), (10, 20548160), (16, 12842600), (20, 10274080), (25, 8219264), (32, 6421300), (40, 5137040), (50, 4109632), (64, 3210650), (80, 2568520), (100, 2054816), (128, 1605325), (157, 1308800), (160, 1284260), (200, 1027408), (314, 654400), (320, 642130), (400, 513704), (409, 502400), (628, 327200), (640, 321065), (785, 261760), (800, 256852), (818, 251200), (1256, 163600), (1570, 130880), (1600, 128426), (1636, 125600), (2045, 100480), (2512, 81800), (3140, 65440), (3200, 64213), (3272, 62800), (3925, 52352), (4090, 50240), (5024, 40900), (6280, 32720), (6544, 31400), (7850, 26176), (8180, 25120), (10048, 20450), (10225, 20096), (12560, 16360), (13088, 15700)]