20645632

素因数分解:

$2^8\times 7^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1$

素因数の和:345

約数の個数: 72

約数和(自身を含む): 48418272

約数和(自身を除く): 27772640

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 64, 82, 112, 128, 164, 224, 256, 281, 287, 328, 448, 562, 574, 656, 896, 1124, 1148, 1312, 1792, 1967, 2248, 2296, 2624, 3934, 4496, 4592, 5248, 7868, 8992, 9184, 10496, 11521, 15736, 17984, 18368, 23042, 31472, 35968, 36736, 46084, 62944, 71936, 73472, 80647, 92168, 125888, 161294, 184336, 251776, 322588, 368672, 503552, 645176, 737344, 1290352, 1474688, 2580704, 2949376, 5161408, 10322816, 20645632]

約数ペア:

[(1, 20645632), (2, 10322816), (4, 5161408), (7, 2949376), (8, 2580704), (14, 1474688), (16, 1290352), (28, 737344), (32, 645176), (41, 503552), (56, 368672), (64, 322588), (82, 251776), (112, 184336), (128, 161294), (164, 125888), (224, 92168), (256, 80647), (281, 73472), (287, 71936), (328, 62944), (448, 46084), (562, 36736), (574, 35968), (656, 31472), (896, 23042), (1124, 18368), (1148, 17984), (1312, 15736), (1792, 11521), (1967, 10496), (2248, 9184), (2296, 8992), (2624, 7868), (3934, 5248), (4496, 4592)]