20738944

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 44186400

約数和(自身を除く): 23447456

約数列:

[1, 2, 4, 8, 16, 29, 32, 37, 58, 64, 74, 116, 128, 148, 151, 232, 296, 302, 464, 592, 604, 928, 1073, 1184, 1208, 1856, 2146, 2368, 2416, 3712, 4292, 4379, 4736, 4832, 5587, 8584, 8758, 9664, 11174, 17168, 17516, 19328, 22348, 34336, 35032, 44696, 68672, 70064, 89392, 137344, 140128, 162023, 178784, 280256, 324046, 357568, 560512, 648092, 715136, 1296184, 2592368, 5184736, 10369472, 20738944]

約数ペア:

[(1, 20738944), (2, 10369472), (4, 5184736), (8, 2592368), (16, 1296184), (29, 715136), (32, 648092), (37, 560512), (58, 357568), (64, 324046), (74, 280256), (116, 178784), (128, 162023), (148, 140128), (151, 137344), (232, 89392), (296, 70064), (302, 68672), (464, 44696), (592, 35032), (604, 34336), (928, 22348), (1073, 19328), (1184, 17516), (1208, 17168), (1856, 11174), (2146, 9664), (2368, 8758), (2416, 8584), (3712, 5587), (4292, 4832), (4379, 4736)]