19912500

素因数分解:

$2^2\times 3^3\times 5^5\times {\mathrm{59}}^1$

素因数の和:97

約数の個数: 144

約数和(自身を含む): 65620800

約数和(自身を除く): 45708300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 59, 60, 75, 90, 100, 108, 118, 125, 135, 150, 177, 180, 225, 236, 250, 270, 295, 300, 354, 375, 450, 500, 531, 540, 590, 625, 675, 708, 750, 885, 900, 1062, 1125, 1180, 1250, 1350, 1475, 1500, 1593, 1770, 1875, 2124, 2250, 2500, 2655, 2700, 2950, 3125, 3186, 3375, 3540, 3750, 4425, 4500, 5310, 5625, 5900, 6250, 6372, 6750, 7375, 7500, 7965, 8850, 9375, 10620, 11250, 12500, 13275, 13500, 14750, 15930, 16875, 17700, 18750, 22125, 22500, 26550, 28125, 29500, 31860, 33750, 36875, 37500, 39825, 44250, 53100, 56250, 66375, 67500, 73750, 79650, 84375, 88500, 110625, 112500, 132750, 147500, 159300, 168750, 184375, 199125, 221250, 265500, 331875, 337500, 368750, 398250, 442500, 553125, 663750, 737500, 796500, 995625, 1106250, 1327500, 1659375, 1991250, 2212500, 3318750, 3982500, 4978125, 6637500, 9956250, 19912500]

約数ペア:

[(1, 19912500), (2, 9956250), (3, 6637500), (4, 4978125), (5, 3982500), (6, 3318750), (9, 2212500), (10, 1991250), (12, 1659375), (15, 1327500), (18, 1106250), (20, 995625), (25, 796500), (27, 737500), (30, 663750), (36, 553125), (45, 442500), (50, 398250), (54, 368750), (59, 337500), (60, 331875), (75, 265500), (90, 221250), (100, 199125), (108, 184375), (118, 168750), (125, 159300), (135, 147500), (150, 132750), (177, 112500), (180, 110625), (225, 88500), (236, 84375), (250, 79650), (270, 73750), (295, 67500), (300, 66375), (354, 56250), (375, 53100), (450, 44250), (500, 39825), (531, 37500), (540, 36875), (590, 33750), (625, 31860), (675, 29500), (708, 28125), (750, 26550), (885, 22500), (900, 22125), (1062, 18750), (1125, 17700), (1180, 16875), (1250, 15930), (1350, 14750), (1475, 13500), (1500, 13275), (1593, 12500), (1770, 11250), (1875, 10620), (2124, 9375), (2250, 8850), (2500, 7965), (2655, 7500), (2700, 7375), (2950, 6750), (3125, 6372), (3186, 6250), (3375, 5900), (3540, 5625), (3750, 5310), (4425, 4500)]