15886720

素因数分解:

$2^7\times 5^1\times {\mathrm{103}}^1\times {\mathrm{241}}^1$

素因数の和:363

約数の個数: 64

約数和(自身を含む): 38507040

約数和(自身を除く): 22620320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 128, 160, 206, 241, 320, 412, 482, 515, 640, 824, 964, 1030, 1205, 1648, 1928, 2060, 2410, 3296, 3856, 4120, 4820, 6592, 7712, 8240, 9640, 13184, 15424, 16480, 19280, 24823, 30848, 32960, 38560, 49646, 65920, 77120, 99292, 124115, 154240, 198584, 248230, 397168, 496460, 794336, 992920, 1588672, 1985840, 3177344, 3971680, 7943360, 15886720]

約数ペア:

[(1, 15886720), (2, 7943360), (4, 3971680), (5, 3177344), (8, 1985840), (10, 1588672), (16, 992920), (20, 794336), (32, 496460), (40, 397168), (64, 248230), (80, 198584), (103, 154240), (128, 124115), (160, 99292), (206, 77120), (241, 65920), (320, 49646), (412, 38560), (482, 32960), (515, 30848), (640, 24823), (824, 19280), (964, 16480), (1030, 15424), (1205, 13184), (1648, 9640), (1928, 8240), (2060, 7712), (2410, 6592), (3296, 4820), (3856, 4120)]