257383560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2339}}^1$

素因数の和:2491

約数の個数: 128

約数和(自身を含む): 889574400

約数和(自身を除く): 632190840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 131, 140, 168, 210, 262, 280, 393, 420, 524, 655, 786, 840, 917, 1048, 1310, 1572, 1834, 1965, 2339, 2620, 2751, 3144, 3668, 3930, 4585, 4678, 5240, 5502, 7017, 7336, 7860, 9170, 9356, 11004, 11695, 13755, 14034, 15720, 16373, 18340, 18712, 22008, 23390, 27510, 28068, 32746, 35085, 36680, 46780, 49119, 55020, 56136, 65492, 70170, 81865, 93560, 98238, 110040, 130984, 140340, 163730, 196476, 245595, 280680, 306409, 327460, 392952, 491190, 612818, 654920, 919227, 982380, 1225636, 1532045, 1838454, 1964760, 2144863, 2451272, 3064090, 3676908, 4289726, 4596135, 6128180, 6434589, 7353816, 8579452, 9192270, 10724315, 12256360, 12869178, 17158904, 18384540, 21448630, 25738356, 32172945, 36769080, 42897260, 51476712, 64345890, 85794520, 128691780, 257383560]

約数ペア:

[(1, 257383560), (2, 128691780), (3, 85794520), (4, 64345890), (5, 51476712), (6, 42897260), (7, 36769080), (8, 32172945), (10, 25738356), (12, 21448630), (14, 18384540), (15, 17158904), (20, 12869178), (21, 12256360), (24, 10724315), (28, 9192270), (30, 8579452), (35, 7353816), (40, 6434589), (42, 6128180), (56, 4596135), (60, 4289726), (70, 3676908), (84, 3064090), (105, 2451272), (120, 2144863), (131, 1964760), (140, 1838454), (168, 1532045), (210, 1225636), (262, 982380), (280, 919227), (393, 654920), (420, 612818), (524, 491190), (655, 392952), (786, 327460), (840, 306409), (917, 280680), (1048, 245595), (1310, 196476), (1572, 163730), (1834, 140340), (1965, 130984), (2339, 110040), (2620, 98238), (2751, 93560), (3144, 81865), (3668, 70170), (3930, 65492), (4585, 56136), (4678, 55020), (5240, 49119), (5502, 46780), (7017, 36680), (7336, 35085), (7860, 32746), (9170, 28068), (9356, 27510), (11004, 23390), (11695, 22008), (13755, 18712), (14034, 18340), (15720, 16373)]