78421000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{659}}^1$

素因数の和:704

約数の個数: 128

約数和(自身を含む): 222393600

約数和(自身を除く): 143972600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 25, 28, 34, 35, 40, 50, 56, 68, 70, 85, 100, 119, 125, 136, 140, 170, 175, 200, 238, 250, 280, 340, 350, 425, 476, 500, 595, 659, 680, 700, 850, 875, 952, 1000, 1190, 1318, 1400, 1700, 1750, 2125, 2380, 2636, 2975, 3295, 3400, 3500, 4250, 4613, 4760, 5272, 5950, 6590, 7000, 8500, 9226, 11203, 11900, 13180, 14875, 16475, 17000, 18452, 22406, 23065, 23800, 26360, 29750, 32950, 36904, 44812, 46130, 56015, 59500, 65900, 78421, 82375, 89624, 92260, 112030, 115325, 119000, 131800, 156842, 164750, 184520, 224060, 230650, 280075, 313684, 329500, 392105, 448120, 461300, 560150, 576625, 627368, 659000, 784210, 922600, 1120300, 1153250, 1400375, 1568420, 1960525, 2240600, 2306500, 2800750, 3136840, 3921050, 4613000, 5601500, 7842100, 9802625, 11203000, 15684200, 19605250, 39210500, 78421000]

約数ペア:

[(1, 78421000), (2, 39210500), (4, 19605250), (5, 15684200), (7, 11203000), (8, 9802625), (10, 7842100), (14, 5601500), (17, 4613000), (20, 3921050), (25, 3136840), (28, 2800750), (34, 2306500), (35, 2240600), (40, 1960525), (50, 1568420), (56, 1400375), (68, 1153250), (70, 1120300), (85, 922600), (100, 784210), (119, 659000), (125, 627368), (136, 576625), (140, 560150), (170, 461300), (175, 448120), (200, 392105), (238, 329500), (250, 313684), (280, 280075), (340, 230650), (350, 224060), (425, 184520), (476, 164750), (500, 156842), (595, 131800), (659, 119000), (680, 115325), (700, 112030), (850, 92260), (875, 89624), (952, 82375), (1000, 78421), (1190, 65900), (1318, 59500), (1400, 56015), (1700, 46130), (1750, 44812), (2125, 36904), (2380, 32950), (2636, 29750), (2975, 26360), (3295, 23800), (3400, 23065), (3500, 22406), (4250, 18452), (4613, 17000), (4760, 16475), (5272, 14875), (5950, 13180), (6590, 11900), (7000, 11203), (8500, 9226)]