16405664

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:274

約数の個数: 72

約数和(自身を含む): 37537920

約数和(自身を除く): 21132256

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 76, 88, 121, 152, 176, 209, 223, 242, 304, 352, 418, 446, 484, 608, 836, 892, 968, 1672, 1784, 1936, 2299, 2453, 3344, 3568, 3872, 4237, 4598, 4906, 6688, 7136, 8474, 9196, 9812, 16948, 18392, 19624, 26983, 33896, 36784, 39248, 46607, 53966, 67792, 73568, 78496, 93214, 107932, 135584, 186428, 215864, 372856, 431728, 512677, 745712, 863456, 1025354, 1491424, 2050708, 4101416, 8202832, 16405664]

約数ペア:

[(1, 16405664), (2, 8202832), (4, 4101416), (8, 2050708), (11, 1491424), (16, 1025354), (19, 863456), (22, 745712), (32, 512677), (38, 431728), (44, 372856), (76, 215864), (88, 186428), (121, 135584), (152, 107932), (176, 93214), (209, 78496), (223, 73568), (242, 67792), (304, 53966), (352, 46607), (418, 39248), (446, 36784), (484, 33896), (608, 26983), (836, 19624), (892, 18392), (968, 16948), (1672, 9812), (1784, 9196), (1936, 8474), (2299, 7136), (2453, 6688), (3344, 4906), (3568, 4598), (3872, 4237)]