643924790

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{379}}^1$

素因数の和:581

約数の個数: 64

約数和(自身を含む): 1241049600

約数和(自身を除く): 597124810

約数列:

[1, 2, 5, 10, 23, 46, 83, 89, 115, 166, 178, 230, 379, 415, 445, 758, 830, 890, 1895, 1909, 2047, 3790, 3818, 4094, 7387, 8717, 9545, 10235, 14774, 17434, 19090, 20470, 31457, 33731, 36935, 43585, 62914, 67462, 73870, 87170, 157285, 168655, 169901, 314570, 337310, 339802, 723511, 775813, 849505, 1447022, 1551626, 1699010, 2799673, 3617555, 3879065, 5599346, 7235110, 7758130, 13998365, 27996730, 64392479, 128784958, 321962395, 643924790]

約数ペア:

[(1, 643924790), (2, 321962395), (5, 128784958), (10, 64392479), (23, 27996730), (46, 13998365), (83, 7758130), (89, 7235110), (115, 5599346), (166, 3879065), (178, 3617555), (230, 2799673), (379, 1699010), (415, 1551626), (445, 1447022), (758, 849505), (830, 775813), (890, 723511), (1895, 339802), (1909, 337310), (2047, 314570), (3790, 169901), (3818, 168655), (4094, 157285), (7387, 87170), (8717, 73870), (9545, 67462), (10235, 62914), (14774, 43585), (17434, 36935), (19090, 33731), (20470, 31457)]