20229728

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{907}}^1$

素因数の和:975

約数の個数: 48

約数和(自身を含む): 43246224

約数和(自身を除く): 23016496

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 41, 68, 82, 136, 164, 272, 328, 544, 656, 697, 907, 1312, 1394, 1814, 2788, 3628, 5576, 7256, 11152, 14512, 15419, 22304, 29024, 30838, 37187, 61676, 74374, 123352, 148748, 246704, 297496, 493408, 594992, 632179, 1189984, 1264358, 2528716, 5057432, 10114864, 20229728]

約数ペア:

[(1, 20229728), (2, 10114864), (4, 5057432), (8, 2528716), (16, 1264358), (17, 1189984), (32, 632179), (34, 594992), (41, 493408), (68, 297496), (82, 246704), (136, 148748), (164, 123352), (272, 74374), (328, 61676), (544, 37187), (656, 30838), (697, 29024), (907, 22304), (1312, 15419), (1394, 14512), (1814, 11152), (2788, 7256), (3628, 5576)]