81974850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:141

約数の個数: 144

約数和(自身を含む): 226580736

約数和(自身を除く): 144605886

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 25, 30, 31, 34, 50, 51, 61, 62, 75, 85, 93, 102, 122, 150, 155, 170, 183, 186, 255, 289, 305, 310, 366, 425, 465, 510, 527, 578, 610, 775, 850, 867, 915, 930, 1037, 1054, 1275, 1445, 1525, 1550, 1581, 1734, 1830, 1891, 2074, 2325, 2550, 2635, 2890, 3050, 3111, 3162, 3782, 4335, 4575, 4650, 5185, 5270, 5673, 6222, 7225, 7905, 8670, 8959, 9150, 9455, 10370, 11346, 13175, 14450, 15555, 15810, 17629, 17918, 18910, 21675, 25925, 26350, 26877, 28365, 31110, 32147, 35258, 39525, 43350, 44795, 47275, 51850, 52887, 53754, 56730, 64294, 77775, 79050, 88145, 89590, 94550, 96441, 105774, 134385, 141825, 155550, 160735, 176290, 192882, 223975, 264435, 268770, 283650, 321470, 440725, 447950, 482205, 528870, 546499, 671925, 803675, 881450, 964410, 1092998, 1322175, 1343850, 1607350, 1639497, 2411025, 2644350, 2732495, 3278994, 4822050, 5464990, 8197485, 13662475, 16394970, 27324950, 40987425, 81974850]

約数ペア:

[(1, 81974850), (2, 40987425), (3, 27324950), (5, 16394970), (6, 13662475), (10, 8197485), (15, 5464990), (17, 4822050), (25, 3278994), (30, 2732495), (31, 2644350), (34, 2411025), (50, 1639497), (51, 1607350), (61, 1343850), (62, 1322175), (75, 1092998), (85, 964410), (93, 881450), (102, 803675), (122, 671925), (150, 546499), (155, 528870), (170, 482205), (183, 447950), (186, 440725), (255, 321470), (289, 283650), (305, 268770), (310, 264435), (366, 223975), (425, 192882), (465, 176290), (510, 160735), (527, 155550), (578, 141825), (610, 134385), (775, 105774), (850, 96441), (867, 94550), (915, 89590), (930, 88145), (1037, 79050), (1054, 77775), (1275, 64294), (1445, 56730), (1525, 53754), (1550, 52887), (1581, 51850), (1734, 47275), (1830, 44795), (1891, 43350), (2074, 39525), (2325, 35258), (2550, 32147), (2635, 31110), (2890, 28365), (3050, 26877), (3111, 26350), (3162, 25925), (3782, 21675), (4335, 18910), (4575, 17918), (4650, 17629), (5185, 15810), (5270, 15555), (5673, 14450), (6222, 13175), (7225, 11346), (7905, 10370), (8670, 9455), (8959, 9150)]