51991520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{761}}^1$

素因数の和:844

約数の個数: 96

約数和(自身を含む): 142865856

約数和(自身を除く): 90874336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 70, 80, 112, 122, 140, 160, 224, 244, 280, 305, 427, 488, 560, 610, 761, 854, 976, 1120, 1220, 1522, 1708, 1952, 2135, 2440, 3044, 3416, 3805, 4270, 4880, 5327, 6088, 6832, 7610, 8540, 9760, 10654, 12176, 13664, 15220, 17080, 21308, 24352, 26635, 30440, 34160, 42616, 46421, 53270, 60880, 68320, 85232, 92842, 106540, 121760, 170464, 185684, 213080, 232105, 324947, 371368, 426160, 464210, 649894, 742736, 852320, 928420, 1299788, 1485472, 1624735, 1856840, 2599576, 3249470, 3713680, 5199152, 6498940, 7427360, 10398304, 12997880, 25995760, 51991520]

約数ペア:

[(1, 51991520), (2, 25995760), (4, 12997880), (5, 10398304), (7, 7427360), (8, 6498940), (10, 5199152), (14, 3713680), (16, 3249470), (20, 2599576), (28, 1856840), (32, 1624735), (35, 1485472), (40, 1299788), (56, 928420), (61, 852320), (70, 742736), (80, 649894), (112, 464210), (122, 426160), (140, 371368), (160, 324947), (224, 232105), (244, 213080), (280, 185684), (305, 170464), (427, 121760), (488, 106540), (560, 92842), (610, 85232), (761, 68320), (854, 60880), (976, 53270), (1120, 46421), (1220, 42616), (1522, 34160), (1708, 30440), (1952, 26635), (2135, 24352), (2440, 21308), (3044, 17080), (3416, 15220), (3805, 13664), (4270, 12176), (4880, 10654), (5327, 9760), (6088, 8540), (6832, 7610)]