81139400

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{569}}^1$

素因数の和:639

約数の個数: 96

約数和(自身を含む): 203558400

約数和(自身を除く): 122419000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 31, 40, 46, 50, 62, 92, 100, 115, 124, 155, 184, 200, 230, 248, 310, 460, 569, 575, 620, 713, 775, 920, 1138, 1150, 1240, 1426, 1550, 2276, 2300, 2845, 2852, 3100, 3565, 4552, 4600, 5690, 5704, 6200, 7130, 11380, 13087, 14225, 14260, 17639, 17825, 22760, 26174, 28450, 28520, 35278, 35650, 52348, 56900, 65435, 70556, 71300, 88195, 104696, 113800, 130870, 141112, 142600, 176390, 261740, 327175, 352780, 405697, 440975, 523480, 654350, 705560, 811394, 881950, 1308700, 1622788, 1763900, 2028485, 2617400, 3245576, 3527800, 4056970, 8113940, 10142425, 16227880, 20284850, 40569700, 81139400]

約数ペア:

[(1, 81139400), (2, 40569700), (4, 20284850), (5, 16227880), (8, 10142425), (10, 8113940), (20, 4056970), (23, 3527800), (25, 3245576), (31, 2617400), (40, 2028485), (46, 1763900), (50, 1622788), (62, 1308700), (92, 881950), (100, 811394), (115, 705560), (124, 654350), (155, 523480), (184, 440975), (200, 405697), (230, 352780), (248, 327175), (310, 261740), (460, 176390), (569, 142600), (575, 141112), (620, 130870), (713, 113800), (775, 104696), (920, 88195), (1138, 71300), (1150, 70556), (1240, 65435), (1426, 56900), (1550, 52348), (2276, 35650), (2300, 35278), (2845, 28520), (2852, 28450), (3100, 26174), (3565, 22760), (4552, 17825), (4600, 17639), (5690, 14260), (5704, 14225), (6200, 13087), (7130, 11380)]