28751580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1117}}^1$

素因数の和:1156

約数の個数: 144

約数和(自身を含む): 102551904

約数和(自身を除く): 73800324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 30, 33, 36, 39, 44, 45, 52, 55, 60, 65, 66, 78, 90, 99, 110, 117, 130, 132, 143, 156, 165, 180, 195, 198, 220, 234, 260, 286, 330, 390, 396, 429, 468, 495, 572, 585, 660, 715, 780, 858, 990, 1117, 1170, 1287, 1430, 1716, 1980, 2145, 2234, 2340, 2574, 2860, 3351, 4290, 4468, 5148, 5585, 6435, 6702, 8580, 10053, 11170, 12287, 12870, 13404, 14521, 16755, 20106, 22340, 24574, 25740, 29042, 33510, 36861, 40212, 43563, 49148, 50265, 58084, 61435, 67020, 72605, 73722, 87126, 100530, 110583, 122870, 130689, 145210, 147444, 159731, 174252, 184305, 201060, 217815, 221166, 245740, 261378, 290420, 319462, 368610, 435630, 442332, 479193, 522756, 552915, 638924, 653445, 737220, 798655, 871260, 958386, 1105830, 1306890, 1437579, 1597310, 1916772, 2211660, 2395965, 2613780, 2875158, 3194620, 4791930, 5750316, 7187895, 9583860, 14375790, 28751580]

約数ペア:

[(1, 28751580), (2, 14375790), (3, 9583860), (4, 7187895), (5, 5750316), (6, 4791930), (9, 3194620), (10, 2875158), (11, 2613780), (12, 2395965), (13, 2211660), (15, 1916772), (18, 1597310), (20, 1437579), (22, 1306890), (26, 1105830), (30, 958386), (33, 871260), (36, 798655), (39, 737220), (44, 653445), (45, 638924), (52, 552915), (55, 522756), (60, 479193), (65, 442332), (66, 435630), (78, 368610), (90, 319462), (99, 290420), (110, 261378), (117, 245740), (130, 221166), (132, 217815), (143, 201060), (156, 184305), (165, 174252), (180, 159731), (195, 147444), (198, 145210), (220, 130689), (234, 122870), (260, 110583), (286, 100530), (330, 87126), (390, 73722), (396, 72605), (429, 67020), (468, 61435), (495, 58084), (572, 50265), (585, 49148), (660, 43563), (715, 40212), (780, 36861), (858, 33510), (990, 29042), (1117, 25740), (1170, 24574), (1287, 22340), (1430, 20106), (1716, 16755), (1980, 14521), (2145, 13404), (2234, 12870), (2340, 12287), (2574, 11170), (2860, 10053), (3351, 8580), (4290, 6702), (4468, 6435), (5148, 5585)]