636594620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{2383}}^1$

素因数の和:2467

約数の個数: 72

約数和(自身を含む): 1449653184

約数和(自身を除く): 813058564

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 361, 370, 380, 703, 722, 740, 1406, 1444, 1805, 2383, 2812, 3515, 3610, 4766, 7030, 7220, 9532, 11915, 13357, 14060, 23830, 26714, 45277, 47660, 53428, 66785, 88171, 90554, 133570, 176342, 181108, 226385, 267140, 352684, 440855, 452770, 860263, 881710, 905540, 1675249, 1720526, 1763420, 3350498, 3441052, 4301315, 6700996, 8376245, 8602630, 16752490, 17205260, 31829731, 33504980, 63659462, 127318924, 159148655, 318297310, 636594620]

約数ペア:

[(1, 636594620), (2, 318297310), (4, 159148655), (5, 127318924), (10, 63659462), (19, 33504980), (20, 31829731), (37, 17205260), (38, 16752490), (74, 8602630), (76, 8376245), (95, 6700996), (148, 4301315), (185, 3441052), (190, 3350498), (361, 1763420), (370, 1720526), (380, 1675249), (703, 905540), (722, 881710), (740, 860263), (1406, 452770), (1444, 440855), (1805, 352684), (2383, 267140), (2812, 226385), (3515, 181108), (3610, 176342), (4766, 133570), (7030, 90554), (7220, 88171), (9532, 66785), (11915, 53428), (13357, 47660), (14060, 45277), (23830, 26714)]