78687900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:213

約数の個数: 216

約数和(自身を含む): 270138960

約数和(自身を除く): 191451060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 25, 30, 34, 36, 37, 45, 50, 51, 60, 68, 74, 75, 85, 90, 100, 102, 111, 139, 148, 150, 153, 170, 180, 185, 204, 222, 225, 255, 278, 300, 306, 333, 340, 370, 417, 425, 444, 450, 510, 555, 556, 612, 629, 666, 695, 740, 765, 834, 850, 900, 925, 1020, 1110, 1251, 1258, 1275, 1332, 1390, 1530, 1665, 1668, 1700, 1850, 1887, 2085, 2220, 2363, 2502, 2516, 2550, 2775, 2780, 3060, 3145, 3330, 3475, 3700, 3774, 3825, 4170, 4726, 5004, 5100, 5143, 5550, 5661, 6255, 6290, 6660, 6950, 7089, 7548, 7650, 8325, 8340, 9435, 9452, 10286, 10425, 11100, 11322, 11815, 12510, 12580, 13900, 14178, 15300, 15429, 15725, 16650, 18870, 20572, 20850, 21267, 22644, 23630, 25020, 25715, 28305, 28356, 30858, 31275, 31450, 33300, 35445, 37740, 41700, 42534, 46287, 47175, 47260, 51430, 56610, 59075, 61716, 62550, 62900, 70890, 77145, 85068, 87431, 92574, 94350, 102860, 106335, 113220, 118150, 125100, 128575, 141525, 141780, 154290, 174862, 177225, 185148, 188700, 212670, 231435, 236300, 257150, 262293, 283050, 308580, 349724, 354450, 385725, 425340, 437155, 462870, 514300, 524586, 531675, 566100, 708900, 771450, 786879, 874310, 925740, 1049172, 1063350, 1157175, 1311465, 1542900, 1573758, 1748620, 2126700, 2185775, 2314350, 2622930, 3147516, 3934395, 4371550, 4628700, 5245860, 6557325, 7868790, 8743100, 13114650, 15737580, 19671975, 26229300, 39343950, 78687900]

約数ペア:

[(1, 78687900), (2, 39343950), (3, 26229300), (4, 19671975), (5, 15737580), (6, 13114650), (9, 8743100), (10, 7868790), (12, 6557325), (15, 5245860), (17, 4628700), (18, 4371550), (20, 3934395), (25, 3147516), (30, 2622930), (34, 2314350), (36, 2185775), (37, 2126700), (45, 1748620), (50, 1573758), (51, 1542900), (60, 1311465), (68, 1157175), (74, 1063350), (75, 1049172), (85, 925740), (90, 874310), (100, 786879), (102, 771450), (111, 708900), (139, 566100), (148, 531675), (150, 524586), (153, 514300), (170, 462870), (180, 437155), (185, 425340), (204, 385725), (222, 354450), (225, 349724), (255, 308580), (278, 283050), (300, 262293), (306, 257150), (333, 236300), (340, 231435), (370, 212670), (417, 188700), (425, 185148), (444, 177225), (450, 174862), (510, 154290), (555, 141780), (556, 141525), (612, 128575), (629, 125100), (666, 118150), (695, 113220), (740, 106335), (765, 102860), (834, 94350), (850, 92574), (900, 87431), (925, 85068), (1020, 77145), (1110, 70890), (1251, 62900), (1258, 62550), (1275, 61716), (1332, 59075), (1390, 56610), (1530, 51430), (1665, 47260), (1668, 47175), (1700, 46287), (1850, 42534), (1887, 41700), (2085, 37740), (2220, 35445), (2363, 33300), (2502, 31450), (2516, 31275), (2550, 30858), (2775, 28356), (2780, 28305), (3060, 25715), (3145, 25020), (3330, 23630), (3475, 22644), (3700, 21267), (3774, 20850), (3825, 20572), (4170, 18870), (4726, 16650), (5004, 15725), (5100, 15429), (5143, 15300), (5550, 14178), (5661, 13900), (6255, 12580), (6290, 12510), (6660, 11815), (6950, 11322), (7089, 11100), (7548, 10425), (7650, 10286), (8325, 9452), (8340, 9435)]