261987200

素因数分解:

$2^7\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:213

約数の個数: 192

約数和(自身を含む): 708288000

約数和(自身を除く): 446300800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 31, 32, 38, 40, 50, 62, 64, 76, 80, 95, 100, 124, 128, 139, 152, 155, 160, 190, 200, 248, 278, 304, 310, 320, 380, 400, 475, 496, 556, 589, 608, 620, 640, 695, 760, 775, 800, 950, 992, 1112, 1178, 1216, 1240, 1390, 1520, 1550, 1600, 1900, 1984, 2224, 2356, 2432, 2480, 2641, 2780, 2945, 3040, 3100, 3200, 3475, 3800, 3968, 4309, 4448, 4712, 4960, 5282, 5560, 5890, 6080, 6200, 6950, 7600, 8618, 8896, 9424, 9920, 10564, 11120, 11780, 12160, 12400, 13205, 13900, 14725, 15200, 17236, 17792, 18848, 19840, 21128, 21545, 22240, 23560, 24800, 26410, 27800, 29450, 30400, 34472, 37696, 42256, 43090, 44480, 47120, 49600, 52820, 55600, 58900, 60800, 66025, 68944, 75392, 81871, 84512, 86180, 88960, 94240, 99200, 105640, 107725, 111200, 117800, 132050, 137888, 163742, 169024, 172360, 188480, 211280, 215450, 222400, 235600, 264100, 275776, 327484, 338048, 344720, 376960, 409355, 422560, 430900, 444800, 471200, 528200, 551552, 654968, 689440, 818710, 845120, 861800, 942400, 1056400, 1309936, 1378880, 1637420, 1690240, 1723600, 1884800, 2046775, 2112800, 2619872, 2757760, 3274840, 3447200, 4093550, 4225600, 5239744, 6549680, 6894400, 8187100, 8451200, 10479488, 13099360, 13788800, 16374200, 26198720, 32748400, 52397440, 65496800, 130993600, 261987200]

約数ペア:

[(1, 261987200), (2, 130993600), (4, 65496800), (5, 52397440), (8, 32748400), (10, 26198720), (16, 16374200), (19, 13788800), (20, 13099360), (25, 10479488), (31, 8451200), (32, 8187100), (38, 6894400), (40, 6549680), (50, 5239744), (62, 4225600), (64, 4093550), (76, 3447200), (80, 3274840), (95, 2757760), (100, 2619872), (124, 2112800), (128, 2046775), (139, 1884800), (152, 1723600), (155, 1690240), (160, 1637420), (190, 1378880), (200, 1309936), (248, 1056400), (278, 942400), (304, 861800), (310, 845120), (320, 818710), (380, 689440), (400, 654968), (475, 551552), (496, 528200), (556, 471200), (589, 444800), (608, 430900), (620, 422560), (640, 409355), (695, 376960), (760, 344720), (775, 338048), (800, 327484), (950, 275776), (992, 264100), (1112, 235600), (1178, 222400), (1216, 215450), (1240, 211280), (1390, 188480), (1520, 172360), (1550, 169024), (1600, 163742), (1900, 137888), (1984, 132050), (2224, 117800), (2356, 111200), (2432, 107725), (2480, 105640), (2641, 99200), (2780, 94240), (2945, 88960), (3040, 86180), (3100, 84512), (3200, 81871), (3475, 75392), (3800, 68944), (3968, 66025), (4309, 60800), (4448, 58900), (4712, 55600), (4960, 52820), (5282, 49600), (5560, 47120), (5890, 44480), (6080, 43090), (6200, 42256), (6950, 37696), (7600, 34472), (8618, 30400), (8896, 29450), (9424, 27800), (9920, 26410), (10564, 24800), (11120, 23560), (11780, 22240), (12160, 21545), (12400, 21128), (13205, 19840), (13900, 18848), (14725, 17792), (15200, 17236)]