199910320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{541}}^1$

素因数の和:734

約数の個数: 80

約数和(自身を含む): 483897600

約数和(自身を除く): 283987280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 149, 155, 248, 298, 310, 496, 541, 596, 620, 745, 1082, 1192, 1240, 1490, 2164, 2384, 2480, 2705, 2980, 4328, 4619, 5410, 5960, 8656, 9238, 10820, 11920, 16771, 18476, 21640, 23095, 33542, 36952, 43280, 46190, 67084, 73904, 80609, 83855, 92380, 134168, 161218, 167710, 184760, 268336, 322436, 335420, 369520, 403045, 644872, 670840, 806090, 1289744, 1341680, 1612180, 2498879, 3224360, 4997758, 6448720, 9995516, 12494395, 19991032, 24988790, 39982064, 49977580, 99955160, 199910320]

約数ペア:

[(1, 199910320), (2, 99955160), (4, 49977580), (5, 39982064), (8, 24988790), (10, 19991032), (16, 12494395), (20, 9995516), (31, 6448720), (40, 4997758), (62, 3224360), (80, 2498879), (124, 1612180), (149, 1341680), (155, 1289744), (248, 806090), (298, 670840), (310, 644872), (496, 403045), (541, 369520), (596, 335420), (620, 322436), (745, 268336), (1082, 184760), (1192, 167710), (1240, 161218), (1490, 134168), (2164, 92380), (2384, 83855), (2480, 80609), (2705, 73904), (2980, 67084), (4328, 46190), (4619, 43280), (5410, 36952), (5960, 33542), (8656, 23095), (9238, 21640), (10820, 18476), (11920, 16771)]