25090408

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 56448000

約数和(自身を除く): 31357592

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 97, 124, 149, 194, 217, 248, 298, 388, 434, 596, 679, 776, 868, 1043, 1192, 1358, 1736, 2086, 2716, 3007, 4172, 4619, 5432, 6014, 8344, 9238, 12028, 14453, 18476, 21049, 24056, 28906, 32333, 36952, 42098, 57812, 64666, 84196, 101171, 115624, 129332, 168392, 202342, 258664, 404684, 448043, 809368, 896086, 1792172, 3136301, 3584344, 6272602, 12545204, 25090408]

約数ペア:

[(1, 25090408), (2, 12545204), (4, 6272602), (7, 3584344), (8, 3136301), (14, 1792172), (28, 896086), (31, 809368), (56, 448043), (62, 404684), (97, 258664), (124, 202342), (149, 168392), (194, 129332), (217, 115624), (248, 101171), (298, 84196), (388, 64666), (434, 57812), (596, 42098), (679, 36952), (776, 32333), (868, 28906), (1043, 24056), (1192, 21049), (1358, 18476), (1736, 14453), (2086, 12028), (2716, 9238), (3007, 8344), (4172, 6014), (4619, 5432)]