198068480

素因数分解:

$2^8\times 5^1\times {\mathrm{271}}^1\times {\mathrm{571}}^1$

素因数の和:863

約数の個数: 72

約数和(自身を含む): 477020544

約数和(自身を除く): 278952064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 271, 320, 542, 571, 640, 1084, 1142, 1280, 1355, 2168, 2284, 2710, 2855, 4336, 4568, 5420, 5710, 8672, 9136, 10840, 11420, 17344, 18272, 21680, 22840, 34688, 36544, 43360, 45680, 69376, 73088, 86720, 91360, 146176, 154741, 173440, 182720, 309482, 346880, 365440, 618964, 730880, 773705, 1237928, 1547410, 2475856, 3094820, 4951712, 6189640, 9903424, 12379280, 19806848, 24758560, 39613696, 49517120, 99034240, 198068480]

約数ペア:

[(1, 198068480), (2, 99034240), (4, 49517120), (5, 39613696), (8, 24758560), (10, 19806848), (16, 12379280), (20, 9903424), (32, 6189640), (40, 4951712), (64, 3094820), (80, 2475856), (128, 1547410), (160, 1237928), (256, 773705), (271, 730880), (320, 618964), (542, 365440), (571, 346880), (640, 309482), (1084, 182720), (1142, 173440), (1280, 154741), (1355, 146176), (2168, 91360), (2284, 86720), (2710, 73088), (2855, 69376), (4336, 45680), (4568, 43360), (5420, 36544), (5710, 34688), (8672, 22840), (9136, 21680), (10840, 18272), (11420, 17344)]