281391320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{143567}}^1$

素因数の和:143592

約数の個数: 48

約数和(自身を含む): 736503840

約数和(自身を除く): 455112520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 143567, 287134, 574268, 717835, 1004969, 1148536, 1435670, 2009938, 2871340, 4019876, 5024845, 5742680, 7034783, 8039752, 10049690, 14069566, 20099380, 28139132, 35173915, 40198760, 56278264, 70347830, 140695660, 281391320]

約数ペア:

[(1, 281391320), (2, 140695660), (4, 70347830), (5, 56278264), (7, 40198760), (8, 35173915), (10, 28139132), (14, 20099380), (20, 14069566), (28, 10049690), (35, 8039752), (40, 7034783), (49, 5742680), (56, 5024845), (70, 4019876), (98, 2871340), (140, 2009938), (196, 1435670), (245, 1148536), (280, 1004969), (392, 717835), (490, 574268), (980, 287134), (1960, 143567)]