201638840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{967}}^1$

素因数の和:1392

約数の個数: 64

約数和(自身を含む): 490311360

約数和(自身を除く): 288672520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 401, 520, 802, 967, 1604, 1934, 2005, 3208, 3868, 4010, 4835, 5213, 7736, 8020, 9670, 10426, 12571, 16040, 19340, 20852, 25142, 26065, 38680, 41704, 50284, 52130, 62855, 100568, 104260, 125710, 208520, 251420, 387767, 502840, 775534, 1551068, 1938835, 3102136, 3877670, 5040971, 7755340, 10081942, 15510680, 20163884, 25204855, 40327768, 50409710, 100819420, 201638840]

約数ペア:

[(1, 201638840), (2, 100819420), (4, 50409710), (5, 40327768), (8, 25204855), (10, 20163884), (13, 15510680), (20, 10081942), (26, 7755340), (40, 5040971), (52, 3877670), (65, 3102136), (104, 1938835), (130, 1551068), (260, 775534), (401, 502840), (520, 387767), (802, 251420), (967, 208520), (1604, 125710), (1934, 104260), (2005, 100568), (3208, 62855), (3868, 52130), (4010, 50284), (4835, 41704), (5213, 38680), (7736, 26065), (8020, 25142), (9670, 20852), (10426, 19340), (12571, 16040)]