81561000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{877}}^1$

素因数の和:932

約数の個数: 128

約数和(自身を含む): 262978560

約数和(自身を除く): 181417560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 31, 40, 50, 60, 62, 75, 93, 100, 120, 124, 125, 150, 155, 186, 200, 248, 250, 300, 310, 372, 375, 465, 500, 600, 620, 744, 750, 775, 877, 930, 1000, 1240, 1500, 1550, 1754, 1860, 2325, 2631, 3000, 3100, 3508, 3720, 3875, 4385, 4650, 5262, 6200, 7016, 7750, 8770, 9300, 10524, 11625, 13155, 15500, 17540, 18600, 21048, 21925, 23250, 26310, 27187, 31000, 35080, 43850, 46500, 52620, 54374, 65775, 81561, 87700, 93000, 105240, 108748, 109625, 131550, 135935, 163122, 175400, 217496, 219250, 263100, 271870, 326244, 328875, 407805, 438500, 526200, 543740, 652488, 657750, 679675, 815610, 877000, 1087480, 1315500, 1359350, 1631220, 2039025, 2631000, 2718700, 3262440, 3398375, 4078050, 5437400, 6796750, 8156100, 10195125, 13593500, 16312200, 20390250, 27187000, 40780500, 81561000]

約数ペア:

[(1, 81561000), (2, 40780500), (3, 27187000), (4, 20390250), (5, 16312200), (6, 13593500), (8, 10195125), (10, 8156100), (12, 6796750), (15, 5437400), (20, 4078050), (24, 3398375), (25, 3262440), (30, 2718700), (31, 2631000), (40, 2039025), (50, 1631220), (60, 1359350), (62, 1315500), (75, 1087480), (93, 877000), (100, 815610), (120, 679675), (124, 657750), (125, 652488), (150, 543740), (155, 526200), (186, 438500), (200, 407805), (248, 328875), (250, 326244), (300, 271870), (310, 263100), (372, 219250), (375, 217496), (465, 175400), (500, 163122), (600, 135935), (620, 131550), (744, 109625), (750, 108748), (775, 105240), (877, 93000), (930, 87700), (1000, 81561), (1240, 65775), (1500, 54374), (1550, 52620), (1754, 46500), (1860, 43850), (2325, 35080), (2631, 31000), (3000, 27187), (3100, 26310), (3508, 23250), (3720, 21925), (3875, 21048), (4385, 18600), (4650, 17540), (5262, 15500), (6200, 13155), (7016, 11625), (7750, 10524), (8770, 9300)]