27800800

素因数分解:

$2^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:129

約数の個数: 144

約数和(自身を含む): 74995200

約数和(自身を除く): 47194400

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 31, 32, 38, 40, 50, 59, 62, 76, 80, 95, 100, 118, 124, 152, 155, 160, 190, 200, 236, 248, 295, 304, 310, 380, 400, 472, 475, 496, 589, 590, 608, 620, 760, 775, 800, 944, 950, 992, 1121, 1178, 1180, 1240, 1475, 1520, 1550, 1829, 1888, 1900, 2242, 2356, 2360, 2480, 2945, 2950, 3040, 3100, 3658, 3800, 4484, 4712, 4720, 4960, 5605, 5890, 5900, 6200, 7316, 7600, 8968, 9145, 9424, 9440, 11210, 11780, 11800, 12400, 14632, 14725, 15200, 17936, 18290, 18848, 22420, 23560, 23600, 24800, 28025, 29264, 29450, 34751, 35872, 36580, 44840, 45725, 47120, 47200, 56050, 58528, 58900, 69502, 73160, 89680, 91450, 94240, 112100, 117800, 139004, 146320, 173755, 179360, 182900, 224200, 235600, 278008, 292640, 347510, 365800, 448400, 471200, 556016, 695020, 731600, 868775, 896800, 1112032, 1390040, 1463200, 1737550, 2780080, 3475100, 5560160, 6950200, 13900400, 27800800]

約数ペア:

[(1, 27800800), (2, 13900400), (4, 6950200), (5, 5560160), (8, 3475100), (10, 2780080), (16, 1737550), (19, 1463200), (20, 1390040), (25, 1112032), (31, 896800), (32, 868775), (38, 731600), (40, 695020), (50, 556016), (59, 471200), (62, 448400), (76, 365800), (80, 347510), (95, 292640), (100, 278008), (118, 235600), (124, 224200), (152, 182900), (155, 179360), (160, 173755), (190, 146320), (200, 139004), (236, 117800), (248, 112100), (295, 94240), (304, 91450), (310, 89680), (380, 73160), (400, 69502), (472, 58900), (475, 58528), (496, 56050), (589, 47200), (590, 47120), (608, 45725), (620, 44840), (760, 36580), (775, 35872), (800, 34751), (944, 29450), (950, 29264), (992, 28025), (1121, 24800), (1178, 23600), (1180, 23560), (1240, 22420), (1475, 18848), (1520, 18290), (1550, 17936), (1829, 15200), (1888, 14725), (1900, 14632), (2242, 12400), (2356, 11800), (2360, 11780), (2480, 11210), (2945, 9440), (2950, 9424), (3040, 9145), (3100, 8968), (3658, 7600), (3800, 7316), (4484, 6200), (4712, 5900), (4720, 5890), (4960, 5605)]