28544955

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 52420608

約数和(自身を除く): 23875653

約数列:

[1, 3, 5, 15, 17, 23, 31, 51, 69, 85, 93, 115, 155, 157, 255, 345, 391, 465, 471, 527, 713, 785, 1173, 1581, 1955, 2139, 2355, 2635, 2669, 3565, 3611, 4867, 5865, 7905, 8007, 10695, 10833, 12121, 13345, 14601, 18055, 24335, 36363, 40035, 54165, 60605, 61387, 73005, 82739, 111941, 181815, 184161, 248217, 306935, 335823, 413695, 559705, 920805, 1241085, 1679115, 1902997, 5708991, 9514985, 28544955]

約数ペア:

[(1, 28544955), (3, 9514985), (5, 5708991), (15, 1902997), (17, 1679115), (23, 1241085), (31, 920805), (51, 559705), (69, 413695), (85, 335823), (93, 306935), (115, 248217), (155, 184161), (157, 181815), (255, 111941), (345, 82739), (391, 73005), (465, 61387), (471, 60605), (527, 54165), (713, 40035), (785, 36363), (1173, 24335), (1581, 18055), (1955, 14601), (2139, 13345), (2355, 12121), (2635, 10833), (2669, 10695), (3565, 8007), (3611, 7905), (4867, 5865)]