20751228

素因数分解:

$2^2\times 3^5\times {\mathrm{37}}^1\times {\mathrm{577}}^1$

素因数の和:633

約数の個数: 72

約数和(自身を含む): 55964272

約数和(自身を除く): 35213044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 81, 108, 111, 148, 162, 222, 243, 324, 333, 444, 486, 577, 666, 972, 999, 1154, 1332, 1731, 1998, 2308, 2997, 3462, 3996, 5193, 5994, 6924, 8991, 10386, 11988, 15579, 17982, 20772, 21349, 31158, 35964, 42698, 46737, 62316, 64047, 85396, 93474, 128094, 140211, 186948, 192141, 256188, 280422, 384282, 560844, 576423, 768564, 1152846, 1729269, 2305692, 3458538, 5187807, 6917076, 10375614, 20751228]

約数ペア:

[(1, 20751228), (2, 10375614), (3, 6917076), (4, 5187807), (6, 3458538), (9, 2305692), (12, 1729269), (18, 1152846), (27, 768564), (36, 576423), (37, 560844), (54, 384282), (74, 280422), (81, 256188), (108, 192141), (111, 186948), (148, 140211), (162, 128094), (222, 93474), (243, 85396), (324, 64047), (333, 62316), (444, 46737), (486, 42698), (577, 35964), (666, 31158), (972, 21349), (999, 20772), (1154, 17982), (1332, 15579), (1731, 11988), (1998, 10386), (2308, 8991), (2997, 6924), (3462, 5994), (3996, 5193)]