400555005

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{509}}^1\times {\mathrm{2281}}^1$

素因数の和:2821

約数の個数: 32

約数和(自身を含む): 670360320

約数和(自身を除く): 269805315

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 509, 1527, 2281, 2545, 6843, 7635, 11405, 11707, 34215, 35121, 52463, 58535, 157389, 175605, 262315, 786945, 1161029, 3483087, 5805145, 17415435, 26703667, 80111001, 133518335, 400555005]

約数ペア:

[(1, 400555005), (3, 133518335), (5, 80111001), (15, 26703667), (23, 17415435), (69, 5805145), (115, 3483087), (345, 1161029), (509, 786945), (1527, 262315), (2281, 175605), (2545, 157389), (6843, 58535), (7635, 52463), (11405, 35121), (11707, 34215)]