16990100

素因数分解:

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

素因数の和:209

約数の個数: 72

約数和(自身を含む): 39372480

約数和(自身を除く): 22382380

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 83, 89, 92, 100, 115, 166, 178, 230, 332, 356, 415, 445, 460, 575, 830, 890, 1150, 1660, 1780, 1909, 2047, 2075, 2225, 2300, 3818, 4094, 4150, 4450, 7387, 7636, 8188, 8300, 8900, 9545, 10235, 14774, 19090, 20470, 29548, 36935, 38180, 40940, 47725, 51175, 73870, 95450, 102350, 147740, 169901, 184675, 190900, 204700, 339802, 369350, 679604, 738700, 849505, 1699010, 3398020, 4247525, 8495050, 16990100]

約数ペア:

[(1, 16990100), (2, 8495050), (4, 4247525), (5, 3398020), (10, 1699010), (20, 849505), (23, 738700), (25, 679604), (46, 369350), (50, 339802), (83, 204700), (89, 190900), (92, 184675), (100, 169901), (115, 147740), (166, 102350), (178, 95450), (230, 73870), (332, 51175), (356, 47725), (415, 40940), (445, 38180), (460, 36935), (575, 29548), (830, 20470), (890, 19090), (1150, 14774), (1660, 10235), (1780, 9545), (1909, 8900), (2047, 8300), (2075, 8188), (2225, 7636), (2300, 7387), (3818, 4450), (4094, 4150)]