18920688

素因数分解:

$2^4\times 3^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:246

約数の個数: 80

約数和(自身を含む): 51068160

約数和(自身を除く): 32147472

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 43, 48, 86, 89, 103, 129, 172, 178, 206, 258, 267, 309, 344, 356, 412, 516, 534, 618, 688, 712, 824, 1032, 1068, 1236, 1424, 1648, 2064, 2136, 2472, 3827, 4272, 4429, 4944, 7654, 8858, 9167, 11481, 13287, 15308, 17716, 18334, 22962, 26574, 27501, 30616, 35432, 36668, 45924, 53148, 55002, 61232, 70864, 73336, 91848, 106296, 110004, 146672, 183696, 212592, 220008, 394181, 440016, 788362, 1182543, 1576724, 2365086, 3153448, 4730172, 6306896, 9460344, 18920688]

約数ペア:

[(1, 18920688), (2, 9460344), (3, 6306896), (4, 4730172), (6, 3153448), (8, 2365086), (12, 1576724), (16, 1182543), (24, 788362), (43, 440016), (48, 394181), (86, 220008), (89, 212592), (103, 183696), (129, 146672), (172, 110004), (178, 106296), (206, 91848), (258, 73336), (267, 70864), (309, 61232), (344, 55002), (356, 53148), (412, 45924), (516, 36668), (534, 35432), (618, 30616), (688, 27501), (712, 26574), (824, 22962), (1032, 18334), (1068, 17716), (1236, 15308), (1424, 13287), (1648, 11481), (2064, 9167), (2136, 8858), (2472, 7654), (3827, 4944), (4272, 4429)]