390194644

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{431}}^1$

素因数の和:629

約数の個数: 72

約数和(自身を含む): 827366400

約数和(自身を除く): 437171756

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 149, 196, 217, 298, 431, 434, 596, 862, 868, 1043, 1519, 1724, 2086, 3017, 3038, 4172, 4619, 6034, 6076, 7301, 9238, 12068, 13361, 14602, 18476, 21119, 26722, 29204, 32333, 42238, 53444, 64219, 64666, 84476, 93527, 128438, 129332, 187054, 226331, 256876, 374108, 449533, 452662, 654689, 899066, 905324, 1309378, 1798132, 1990789, 2618756, 3146731, 3981578, 6293462, 7963156, 12586924, 13935523, 27871046, 55742092, 97548661, 195097322, 390194644]

約数ペア:

[(1, 390194644), (2, 195097322), (4, 97548661), (7, 55742092), (14, 27871046), (28, 13935523), (31, 12586924), (49, 7963156), (62, 6293462), (98, 3981578), (124, 3146731), (149, 2618756), (196, 1990789), (217, 1798132), (298, 1309378), (431, 905324), (434, 899066), (596, 654689), (862, 452662), (868, 449533), (1043, 374108), (1519, 256876), (1724, 226331), (2086, 187054), (3017, 129332), (3038, 128438), (4172, 93527), (4619, 84476), (6034, 64666), (6076, 64219), (7301, 53444), (9238, 42238), (12068, 32333), (13361, 29204), (14602, 26722), (18476, 21119)]