20180100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{491}}^1$

素因数の和:645

約数の個数: 72

約数和(自身を含む): 58933728

約数和(自身を除く): 38753628

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 137, 150, 274, 300, 411, 491, 548, 685, 822, 982, 1370, 1473, 1644, 1964, 2055, 2455, 2740, 2946, 3425, 4110, 4910, 5892, 6850, 7365, 8220, 9820, 10275, 12275, 13700, 14730, 20550, 24550, 29460, 36825, 41100, 49100, 67267, 73650, 134534, 147300, 201801, 269068, 336335, 403602, 672670, 807204, 1009005, 1345340, 1681675, 2018010, 3363350, 4036020, 5045025, 6726700, 10090050, 20180100]

約数ペア:

[(1, 20180100), (2, 10090050), (3, 6726700), (4, 5045025), (5, 4036020), (6, 3363350), (10, 2018010), (12, 1681675), (15, 1345340), (20, 1009005), (25, 807204), (30, 672670), (50, 403602), (60, 336335), (75, 269068), (100, 201801), (137, 147300), (150, 134534), (274, 73650), (300, 67267), (411, 49100), (491, 41100), (548, 36825), (685, 29460), (822, 24550), (982, 20550), (1370, 14730), (1473, 13700), (1644, 12275), (1964, 10275), (2055, 9820), (2455, 8220), (2740, 7365), (2946, 6850), (3425, 5892), (4110, 4910)]