18665970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{6991}}^1$

素因数の和:7090

約数の個数: 32

約数和(自身を含む): 45308160

約数和(自身を除く): 26642190

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 89, 178, 267, 445, 534, 890, 1335, 2670, 6991, 13982, 20973, 34955, 41946, 69910, 104865, 209730, 622199, 1244398, 1866597, 3110995, 3733194, 6221990, 9332985, 18665970]

約数ペア:

[(1, 18665970), (2, 9332985), (3, 6221990), (5, 3733194), (6, 3110995), (10, 1866597), (15, 1244398), (30, 622199), (89, 209730), (178, 104865), (267, 69910), (445, 41946), (534, 34955), (890, 20973), (1335, 13982), (2670, 6991)]