81730900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{367}}^1$

素因数の和:529

約数の個数: 72

約数和(自身を含む): 189737856

約数和(自身を除く): 108006956

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 131, 170, 262, 340, 367, 425, 524, 655, 734, 850, 1310, 1468, 1700, 1835, 2227, 2620, 3275, 3670, 4454, 6239, 6550, 7340, 8908, 9175, 11135, 12478, 13100, 18350, 22270, 24956, 31195, 36700, 44540, 48077, 55675, 62390, 96154, 111350, 124780, 155975, 192308, 222700, 240385, 311950, 480770, 623900, 817309, 961540, 1201925, 1634618, 2403850, 3269236, 4086545, 4807700, 8173090, 16346180, 20432725, 40865450, 81730900]

約数ペア:

[(1, 81730900), (2, 40865450), (4, 20432725), (5, 16346180), (10, 8173090), (17, 4807700), (20, 4086545), (25, 3269236), (34, 2403850), (50, 1634618), (68, 1201925), (85, 961540), (100, 817309), (131, 623900), (170, 480770), (262, 311950), (340, 240385), (367, 222700), (425, 192308), (524, 155975), (655, 124780), (734, 111350), (850, 96154), (1310, 62390), (1468, 55675), (1700, 48077), (1835, 44540), (2227, 36700), (2620, 31195), (3275, 24956), (3670, 22270), (4454, 18350), (6239, 13100), (6550, 12478), (7340, 11135), (8908, 9175)]