18720224

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:307

約数の個数: 48

約数和(自身を含む): 38476368

約数和(自身を除く): 19756144

約数列:

[1, 2, 4, 8, 16, 32, 37, 74, 97, 148, 163, 194, 296, 326, 388, 592, 652, 776, 1184, 1304, 1552, 2608, 3104, 3589, 5216, 6031, 7178, 12062, 14356, 15811, 24124, 28712, 31622, 48248, 57424, 63244, 96496, 114848, 126488, 192992, 252976, 505952, 585007, 1170014, 2340028, 4680056, 9360112, 18720224]

約数ペア:

[(1, 18720224), (2, 9360112), (4, 4680056), (8, 2340028), (16, 1170014), (32, 585007), (37, 505952), (74, 252976), (97, 192992), (148, 126488), (163, 114848), (194, 96496), (296, 63244), (326, 57424), (388, 48248), (592, 31622), (652, 28712), (776, 24124), (1184, 15811), (1304, 14356), (1552, 12062), (2608, 7178), (3104, 6031), (3589, 5216)]