257070820

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^2\times {\mathrm{41}}^1\times {\mathrm{229}}^1$

素因数の和:353

約数の個数: 72

約数和(自身を含む): 570848040

約数和(自身を除く): 313777220

約数列:

[1, 2, 4, 5, 10, 20, 37, 41, 74, 82, 148, 164, 185, 205, 229, 370, 410, 458, 740, 820, 916, 1145, 1369, 1517, 2290, 2738, 3034, 4580, 5476, 6068, 6845, 7585, 8473, 9389, 13690, 15170, 16946, 18778, 27380, 30340, 33892, 37556, 42365, 46945, 56129, 84730, 93890, 112258, 169460, 187780, 224516, 280645, 313501, 347393, 561290, 627002, 694786, 1122580, 1254004, 1389572, 1567505, 1736965, 3135010, 3473930, 6270020, 6947860, 12853541, 25707082, 51414164, 64267705, 128535410, 257070820]

約数ペア:

[(1, 257070820), (2, 128535410), (4, 64267705), (5, 51414164), (10, 25707082), (20, 12853541), (37, 6947860), (41, 6270020), (74, 3473930), (82, 3135010), (148, 1736965), (164, 1567505), (185, 1389572), (205, 1254004), (229, 1122580), (370, 694786), (410, 627002), (458, 561290), (740, 347393), (820, 313501), (916, 280645), (1145, 224516), (1369, 187780), (1517, 169460), (2290, 112258), (2738, 93890), (3034, 84730), (4580, 56129), (5476, 46945), (6068, 42365), (6845, 37556), (7585, 33892), (8473, 30340), (9389, 27380), (13690, 18778), (15170, 16946)]