278640400

素因数分解:

$2^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{977}}^1$

素因数の和:1049

約数の個数: 120

約数和(自身を含む): 721810944

約数和(自身を除く): 443170544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 31, 40, 46, 50, 62, 80, 92, 100, 115, 124, 155, 184, 200, 230, 248, 310, 368, 400, 460, 496, 575, 620, 713, 775, 920, 977, 1150, 1240, 1426, 1550, 1840, 1954, 2300, 2480, 2852, 3100, 3565, 3908, 4600, 4885, 5704, 6200, 7130, 7816, 9200, 9770, 11408, 12400, 14260, 15632, 17825, 19540, 22471, 24425, 28520, 30287, 35650, 39080, 44942, 48850, 57040, 60574, 71300, 78160, 89884, 97700, 112355, 121148, 142600, 151435, 179768, 195400, 224710, 242296, 285200, 302870, 359536, 390800, 449420, 484592, 561775, 605740, 696601, 757175, 898840, 1123550, 1211480, 1393202, 1514350, 1797680, 2247100, 2422960, 2786404, 3028700, 3483005, 4494200, 5572808, 6057400, 6966010, 8988400, 11145616, 12114800, 13932020, 17415025, 27864040, 34830050, 55728080, 69660100, 139320200, 278640400]

約数ペア:

[(1, 278640400), (2, 139320200), (4, 69660100), (5, 55728080), (8, 34830050), (10, 27864040), (16, 17415025), (20, 13932020), (23, 12114800), (25, 11145616), (31, 8988400), (40, 6966010), (46, 6057400), (50, 5572808), (62, 4494200), (80, 3483005), (92, 3028700), (100, 2786404), (115, 2422960), (124, 2247100), (155, 1797680), (184, 1514350), (200, 1393202), (230, 1211480), (248, 1123550), (310, 898840), (368, 757175), (400, 696601), (460, 605740), (496, 561775), (575, 484592), (620, 449420), (713, 390800), (775, 359536), (920, 302870), (977, 285200), (1150, 242296), (1240, 224710), (1426, 195400), (1550, 179768), (1840, 151435), (1954, 142600), (2300, 121148), (2480, 112355), (2852, 97700), (3100, 89884), (3565, 78160), (3908, 71300), (4600, 60574), (4885, 57040), (5704, 48850), (6200, 44942), (7130, 39080), (7816, 35650), (9200, 30287), (9770, 28520), (11408, 24425), (12400, 22471), (14260, 19540), (15632, 17825)]