243721535

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 310694400

約数和(自身を除く): 66972865

約数列:

[1, 5, 31, 61, 149, 155, 173, 305, 745, 865, 1891, 4619, 5363, 9089, 9455, 10553, 23095, 25777, 26815, 45445, 52765, 128885, 281759, 327143, 799087, 1408795, 1572397, 1635715, 3995435, 7861985, 48744307, 243721535]

約数ペア:

[(1, 243721535), (5, 48744307), (31, 7861985), (61, 3995435), (149, 1635715), (155, 1572397), (173, 1408795), (305, 799087), (745, 327143), (865, 281759), (1891, 128885), (4619, 52765), (5363, 45445), (9089, 26815), (9455, 25777), (10553, 23095)]