20437664

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{673}}^1$

素因数の和:769

約数の個数: 48

約数和(自身を含む): 43990632

約数和(自身を除く): 23552968

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 73, 104, 146, 208, 292, 416, 584, 673, 949, 1168, 1346, 1898, 2336, 2692, 3796, 5384, 7592, 8749, 10768, 15184, 17498, 21536, 30368, 34996, 49129, 69992, 98258, 139984, 196516, 279968, 393032, 638677, 786064, 1277354, 1572128, 2554708, 5109416, 10218832, 20437664]

約数ペア:

[(1, 20437664), (2, 10218832), (4, 5109416), (8, 2554708), (13, 1572128), (16, 1277354), (26, 786064), (32, 638677), (52, 393032), (73, 279968), (104, 196516), (146, 139984), (208, 98258), (292, 69992), (416, 49129), (584, 34996), (673, 30368), (949, 21536), (1168, 17498), (1346, 15184), (1898, 10768), (2336, 8749), (2692, 7592), (3796, 5384)]