408822920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{373}}^1$

素因数の和:495

約数の個数: 128

約数和(自身を含む): 1046960640

約数和(自身を除く): 638137720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 53, 55, 88, 94, 106, 110, 188, 212, 220, 235, 265, 373, 376, 424, 440, 470, 517, 530, 583, 746, 940, 1034, 1060, 1166, 1492, 1865, 1880, 2068, 2120, 2332, 2491, 2585, 2915, 2984, 3730, 4103, 4136, 4664, 4982, 5170, 5830, 7460, 8206, 9964, 10340, 11660, 12455, 14920, 16412, 17531, 19769, 19928, 20515, 20680, 23320, 24910, 27401, 32824, 35062, 39538, 41030, 49820, 54802, 70124, 79076, 82060, 87655, 98845, 99640, 109604, 137005, 140248, 158152, 164120, 175310, 192841, 197690, 217459, 219208, 274010, 350620, 385682, 395380, 434918, 548020, 701240, 771364, 790760, 869836, 929143, 964205, 1087295, 1096040, 1542728, 1739672, 1858286, 1928410, 2174590, 3716572, 3856820, 4349180, 4645715, 7433144, 7713640, 8698360, 9291430, 10220573, 18582860, 20441146, 37165720, 40882292, 51102865, 81764584, 102205730, 204411460, 408822920]

約数ペア:

[(1, 408822920), (2, 204411460), (4, 102205730), (5, 81764584), (8, 51102865), (10, 40882292), (11, 37165720), (20, 20441146), (22, 18582860), (40, 10220573), (44, 9291430), (47, 8698360), (53, 7713640), (55, 7433144), (88, 4645715), (94, 4349180), (106, 3856820), (110, 3716572), (188, 2174590), (212, 1928410), (220, 1858286), (235, 1739672), (265, 1542728), (373, 1096040), (376, 1087295), (424, 964205), (440, 929143), (470, 869836), (517, 790760), (530, 771364), (583, 701240), (746, 548020), (940, 434918), (1034, 395380), (1060, 385682), (1166, 350620), (1492, 274010), (1865, 219208), (1880, 217459), (2068, 197690), (2120, 192841), (2332, 175310), (2491, 164120), (2585, 158152), (2915, 140248), (2984, 137005), (3730, 109604), (4103, 99640), (4136, 98845), (4664, 87655), (4982, 82060), (5170, 79076), (5830, 70124), (7460, 54802), (8206, 49820), (9964, 41030), (10340, 39538), (11660, 35062), (12455, 32824), (14920, 27401), (16412, 24910), (17531, 23320), (19769, 20680), (19928, 20515)]