20167664

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:238

約数の個数: 80

約数和(自身を含む): 46366080

約数和(自身を除く): 26198416

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 37, 38, 44, 74, 76, 88, 148, 152, 163, 176, 209, 296, 304, 326, 407, 418, 592, 652, 703, 814, 836, 1304, 1406, 1628, 1672, 1793, 2608, 2812, 3097, 3256, 3344, 3586, 5624, 6031, 6194, 6512, 7172, 7733, 11248, 12062, 12388, 14344, 15466, 24124, 24776, 28688, 30932, 34067, 48248, 49552, 61864, 66341, 68134, 96496, 114589, 123728, 132682, 136268, 229178, 265364, 272536, 458356, 530728, 545072, 916712, 1061456, 1260479, 1833424, 2520958, 5041916, 10083832, 20167664]

約数ペア:

[(1, 20167664), (2, 10083832), (4, 5041916), (8, 2520958), (11, 1833424), (16, 1260479), (19, 1061456), (22, 916712), (37, 545072), (38, 530728), (44, 458356), (74, 272536), (76, 265364), (88, 229178), (148, 136268), (152, 132682), (163, 123728), (176, 114589), (209, 96496), (296, 68134), (304, 66341), (326, 61864), (407, 49552), (418, 48248), (592, 34067), (652, 30932), (703, 28688), (814, 24776), (836, 24124), (1304, 15466), (1406, 14344), (1628, 12388), (1672, 12062), (1793, 11248), (2608, 7733), (2812, 7172), (3097, 6512), (3256, 6194), (3344, 6031), (3586, 5624)]