15721423900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{2791}}^1$

素因数の和:3444

約数の個数: 144

約数和(自身を含む): 42071196160

約数和(自身を除く): 26349772260

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 260, 325, 350, 364, 455, 619, 650, 700, 910, 1238, 1300, 1820, 2275, 2476, 2791, 3095, 4333, 4550, 5582, 6190, 8047, 8666, 9100, 11164, 12380, 13955, 15475, 16094, 17332, 19537, 21665, 27910, 30950, 32188, 36283, 39074, 40235, 43330, 55820, 56329, 61900, 69775, 72566, 78148, 80470, 86660, 97685, 108325, 112658, 139550, 145132, 160940, 181415, 195370, 201175, 216650, 225316, 253981, 279100, 281645, 362830, 390740, 402350, 433300, 488425, 507962, 563290, 725660, 804700, 907075, 976850, 1015924, 1126580, 1269905, 1408225, 1727629, 1814150, 1953700, 2539810, 2816450, 3455258, 3628300, 5079620, 5632900, 6349525, 6910516, 8638145, 12093403, 12699050, 17276290, 22459177, 24186806, 25398100, 34552580, 43190725, 44918354, 48373612, 60467015, 86381450, 89836708, 112295885, 120934030, 157214239, 172762900, 224591770, 241868060, 302335075, 314428478, 449183540, 561479425, 604670150, 628856956, 786071195, 1122958850, 1209340300, 1572142390, 2245917700, 3144284780, 3930355975, 7860711950, 15721423900]

約数ペア:

[(1, 15721423900), (2, 7860711950), (4, 3930355975), (5, 3144284780), (7, 2245917700), (10, 1572142390), (13, 1209340300), (14, 1122958850), (20, 786071195), (25, 628856956), (26, 604670150), (28, 561479425), (35, 449183540), (50, 314428478), (52, 302335075), (65, 241868060), (70, 224591770), (91, 172762900), (100, 157214239), (130, 120934030), (140, 112295885), (175, 89836708), (182, 86381450), (260, 60467015), (325, 48373612), (350, 44918354), (364, 43190725), (455, 34552580), (619, 25398100), (650, 24186806), (700, 22459177), (910, 17276290), (1238, 12699050), (1300, 12093403), (1820, 8638145), (2275, 6910516), (2476, 6349525), (2791, 5632900), (3095, 5079620), (4333, 3628300), (4550, 3455258), (5582, 2816450), (6190, 2539810), (8047, 1953700), (8666, 1814150), (9100, 1727629), (11164, 1408225), (12380, 1269905), (13955, 1126580), (15475, 1015924), (16094, 976850), (17332, 907075), (19537, 804700), (21665, 725660), (27910, 563290), (30950, 507962), (32188, 488425), (36283, 433300), (39074, 402350), (40235, 390740), (43330, 362830), (55820, 281645), (56329, 279100), (61900, 253981), (69775, 225316), (72566, 216650), (78148, 201175), (80470, 195370), (86660, 181415), (97685, 160940), (108325, 145132), (112658, 139550)]