20047664

素因数分解:

$2^4\times 7^3\times {\mathrm{13}}^1\times {\mathrm{281}}^1$

素因数の和:323

約数の個数: 80

約数和(自身を含む): 48955200

約数和(自身を除く): 28907536

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 281, 343, 364, 392, 562, 637, 686, 728, 784, 1124, 1274, 1372, 1456, 1967, 2248, 2548, 2744, 3653, 3934, 4459, 4496, 5096, 5488, 7306, 7868, 8918, 10192, 13769, 14612, 15736, 17836, 25571, 27538, 29224, 31472, 35672, 51142, 55076, 58448, 71344, 96383, 102284, 110152, 178997, 192766, 204568, 220304, 357994, 385532, 409136, 715988, 771064, 1252979, 1431976, 1542128, 2505958, 2863952, 5011916, 10023832, 20047664]

約数ペア:

[(1, 20047664), (2, 10023832), (4, 5011916), (7, 2863952), (8, 2505958), (13, 1542128), (14, 1431976), (16, 1252979), (26, 771064), (28, 715988), (49, 409136), (52, 385532), (56, 357994), (91, 220304), (98, 204568), (104, 192766), (112, 178997), (182, 110152), (196, 102284), (208, 96383), (281, 71344), (343, 58448), (364, 55076), (392, 51142), (562, 35672), (637, 31472), (686, 29224), (728, 27538), (784, 25571), (1124, 17836), (1274, 15736), (1372, 14612), (1456, 13769), (1967, 10192), (2248, 8918), (2548, 7868), (2744, 7306), (3653, 5488), (3934, 5096), (4459, 4496)]