25579900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{367}}^1$

素因数の和:439

約数の個数: 72

約数和(自身を含む): 60371136

約数和(自身を除く): 34791236

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 41, 50, 68, 82, 85, 100, 164, 170, 205, 340, 367, 410, 425, 697, 734, 820, 850, 1025, 1394, 1468, 1700, 1835, 2050, 2788, 3485, 3670, 4100, 6239, 6970, 7340, 9175, 12478, 13940, 15047, 17425, 18350, 24956, 30094, 31195, 34850, 36700, 60188, 62390, 69700, 75235, 124780, 150470, 155975, 255799, 300940, 311950, 376175, 511598, 623900, 752350, 1023196, 1278995, 1504700, 2557990, 5115980, 6394975, 12789950, 25579900]

約数ペア:

[(1, 25579900), (2, 12789950), (4, 6394975), (5, 5115980), (10, 2557990), (17, 1504700), (20, 1278995), (25, 1023196), (34, 752350), (41, 623900), (50, 511598), (68, 376175), (82, 311950), (85, 300940), (100, 255799), (164, 155975), (170, 150470), (205, 124780), (340, 75235), (367, 69700), (410, 62390), (425, 60188), (697, 36700), (734, 34850), (820, 31195), (850, 30094), (1025, 24956), (1394, 18350), (1468, 17425), (1700, 15047), (1835, 13940), (2050, 12478), (2788, 9175), (3485, 7340), (3670, 6970), (4100, 6239)]