251578320

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{149749}}^1$

素因数の和:149772

約数の個数: 80

約数和(自身を含む): 891312000

約数和(自身を除く): 639733680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 149749, 299498, 449247, 598996, 748745, 898494, 1048243, 1197992, 1497490, 1796988, 2096486, 2246235, 2395984, 2994980, 3144729, 3593976, 4192972, 4492470, 5241215, 5989960, 6289458, 7187952, 8385944, 8984940, 10482430, 11979920, 12578916, 15723645, 16771888, 17969880, 20964860, 25157832, 31447290, 35939760, 41929720, 50315664, 62894580, 83859440, 125789160, 251578320]

約数ペア:

[(1, 251578320), (2, 125789160), (3, 83859440), (4, 62894580), (5, 50315664), (6, 41929720), (7, 35939760), (8, 31447290), (10, 25157832), (12, 20964860), (14, 17969880), (15, 16771888), (16, 15723645), (20, 12578916), (21, 11979920), (24, 10482430), (28, 8984940), (30, 8385944), (35, 7187952), (40, 6289458), (42, 5989960), (48, 5241215), (56, 4492470), (60, 4192972), (70, 3593976), (80, 3144729), (84, 2994980), (105, 2395984), (112, 2246235), (120, 2096486), (140, 1796988), (168, 1497490), (210, 1197992), (240, 1048243), (280, 898494), (336, 748745), (420, 598996), (560, 449247), (840, 299498), (1680, 149749)]