18978900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{1543}}^1$

素因数の和:1601

約数の個数: 72

約数和(自身を含む): 56288064

約数和(自身を除く): 37309164

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 41, 50, 60, 75, 82, 100, 123, 150, 164, 205, 246, 300, 410, 492, 615, 820, 1025, 1230, 1543, 2050, 2460, 3075, 3086, 4100, 4629, 6150, 6172, 7715, 9258, 12300, 15430, 18516, 23145, 30860, 38575, 46290, 63263, 77150, 92580, 115725, 126526, 154300, 189789, 231450, 253052, 316315, 379578, 462900, 632630, 759156, 948945, 1265260, 1581575, 1897890, 3163150, 3795780, 4744725, 6326300, 9489450, 18978900]

約数ペア:

[(1, 18978900), (2, 9489450), (3, 6326300), (4, 4744725), (5, 3795780), (6, 3163150), (10, 1897890), (12, 1581575), (15, 1265260), (20, 948945), (25, 759156), (30, 632630), (41, 462900), (50, 379578), (60, 316315), (75, 253052), (82, 231450), (100, 189789), (123, 154300), (150, 126526), (164, 115725), (205, 92580), (246, 77150), (300, 63263), (410, 46290), (492, 38575), (615, 30860), (820, 23145), (1025, 18516), (1230, 15430), (1543, 12300), (2050, 9258), (2460, 7715), (3075, 6172), (3086, 6150), (4100, 4629)]