20807700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1613}}^1$

素因数の和:1673

約数の個数: 72

約数和(自身を含む): 61641888

約数和(自身を除く): 40834188

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 43, 50, 60, 75, 86, 100, 129, 150, 172, 215, 258, 300, 430, 516, 645, 860, 1075, 1290, 1613, 2150, 2580, 3225, 3226, 4300, 4839, 6450, 6452, 8065, 9678, 12900, 16130, 19356, 24195, 32260, 40325, 48390, 69359, 80650, 96780, 120975, 138718, 161300, 208077, 241950, 277436, 346795, 416154, 483900, 693590, 832308, 1040385, 1387180, 1733975, 2080770, 3467950, 4161540, 5201925, 6935900, 10403850, 20807700]

約数ペア:

[(1, 20807700), (2, 10403850), (3, 6935900), (4, 5201925), (5, 4161540), (6, 3467950), (10, 2080770), (12, 1733975), (15, 1387180), (20, 1040385), (25, 832308), (30, 693590), (43, 483900), (50, 416154), (60, 346795), (75, 277436), (86, 241950), (100, 208077), (129, 161300), (150, 138718), (172, 120975), (215, 96780), (258, 80650), (300, 69359), (430, 48390), (516, 40325), (645, 32260), (860, 24195), (1075, 19356), (1290, 16130), (1613, 12900), (2150, 9678), (2580, 8065), (3225, 6452), (3226, 6450), (4300, 4839)]