19886100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5099}}^1$

素因数の和:5129

約数の個数: 72

約数和(自身を含む): 61975200

約数和(自身を除く): 42089100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 5099, 10198, 15297, 20396, 25495, 30594, 50990, 61188, 66287, 76485, 101980, 127475, 132574, 152970, 198861, 254950, 265148, 305940, 331435, 382425, 397722, 509900, 662870, 764850, 795444, 994305, 1325740, 1529700, 1657175, 1988610, 3314350, 3977220, 4971525, 6628700, 9943050, 19886100]

約数ペア:

[(1, 19886100), (2, 9943050), (3, 6628700), (4, 4971525), (5, 3977220), (6, 3314350), (10, 1988610), (12, 1657175), (13, 1529700), (15, 1325740), (20, 994305), (25, 795444), (26, 764850), (30, 662870), (39, 509900), (50, 397722), (52, 382425), (60, 331435), (65, 305940), (75, 265148), (78, 254950), (100, 198861), (130, 152970), (150, 132574), (156, 127475), (195, 101980), (260, 76485), (300, 66287), (325, 61188), (390, 50990), (650, 30594), (780, 25495), (975, 20396), (1300, 15297), (1950, 10198), (3900, 5099)]