250319420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{2389}}^1$

素因数の和:2455

約数の個数: 72

約数和(自身を含む): 587825280

約数和(自身を除く): 337505860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 169, 260, 310, 338, 403, 620, 676, 806, 845, 1612, 1690, 2015, 2389, 3380, 4030, 4778, 5239, 8060, 9556, 10478, 11945, 20956, 23890, 26195, 31057, 47780, 52390, 62114, 74059, 104780, 124228, 148118, 155285, 296236, 310570, 370295, 403741, 621140, 740590, 807482, 962767, 1481180, 1614964, 1925534, 2018705, 3851068, 4037410, 4813835, 8074820, 9627670, 12515971, 19255340, 25031942, 50063884, 62579855, 125159710, 250319420]

約数ペア:

[(1, 250319420), (2, 125159710), (4, 62579855), (5, 50063884), (10, 25031942), (13, 19255340), (20, 12515971), (26, 9627670), (31, 8074820), (52, 4813835), (62, 4037410), (65, 3851068), (124, 2018705), (130, 1925534), (155, 1614964), (169, 1481180), (260, 962767), (310, 807482), (338, 740590), (403, 621140), (620, 403741), (676, 370295), (806, 310570), (845, 296236), (1612, 155285), (1690, 148118), (2015, 124228), (2389, 104780), (3380, 74059), (4030, 62114), (4778, 52390), (5239, 47780), (8060, 31057), (9556, 26195), (10478, 23890), (11945, 20956)]