51991100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{257}}^1$

素因数の和:312

約数の個数: 108

約数和(自身を含む): 137501616

約数和(自身を除く): 85510516

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 25, 28, 34, 35, 50, 68, 70, 85, 100, 119, 140, 170, 175, 238, 257, 289, 340, 350, 425, 476, 514, 578, 595, 700, 850, 1028, 1156, 1190, 1285, 1445, 1700, 1799, 2023, 2380, 2570, 2890, 2975, 3598, 4046, 4369, 5140, 5780, 5950, 6425, 7196, 7225, 8092, 8738, 8995, 10115, 11900, 12850, 14450, 17476, 17990, 20230, 21845, 25700, 28900, 30583, 35980, 40460, 43690, 44975, 50575, 61166, 74273, 87380, 89950, 101150, 109225, 122332, 148546, 152915, 179900, 202300, 218450, 297092, 305830, 371365, 436900, 519911, 611660, 742730, 764575, 1039822, 1485460, 1529150, 1856825, 2079644, 2599555, 3058300, 3713650, 5199110, 7427300, 10398220, 12997775, 25995550, 51991100]

約数ペア:

[(1, 51991100), (2, 25995550), (4, 12997775), (5, 10398220), (7, 7427300), (10, 5199110), (14, 3713650), (17, 3058300), (20, 2599555), (25, 2079644), (28, 1856825), (34, 1529150), (35, 1485460), (50, 1039822), (68, 764575), (70, 742730), (85, 611660), (100, 519911), (119, 436900), (140, 371365), (170, 305830), (175, 297092), (238, 218450), (257, 202300), (289, 179900), (340, 152915), (350, 148546), (425, 122332), (476, 109225), (514, 101150), (578, 89950), (595, 87380), (700, 74273), (850, 61166), (1028, 50575), (1156, 44975), (1190, 43690), (1285, 40460), (1445, 35980), (1700, 30583), (1799, 28900), (2023, 25700), (2380, 21845), (2570, 20230), (2890, 17990), (2975, 17476), (3598, 14450), (4046, 12850), (4369, 11900), (5140, 10115), (5780, 8995), (5950, 8738), (6425, 8092), (7196, 7225)]