81100004

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 151683840

約数和(自身を除く): 70583836

約数列:

[1, 2, 4, 37, 47, 74, 89, 94, 131, 148, 178, 188, 262, 356, 524, 1739, 3293, 3478, 4183, 4847, 6157, 6586, 6956, 8366, 9694, 11659, 12314, 13172, 16732, 19388, 23318, 24628, 46636, 154771, 227809, 309542, 431383, 455618, 547973, 619084, 862766, 911236, 1095946, 1725532, 2191892, 20275001, 40550002, 81100004]

約数ペア:

[(1, 81100004), (2, 40550002), (4, 20275001), (37, 2191892), (47, 1725532), (74, 1095946), (89, 911236), (94, 862766), (131, 619084), (148, 547973), (178, 455618), (188, 431383), (262, 309542), (356, 227809), (524, 154771), (1739, 46636), (3293, 24628), (3478, 23318), (4183, 19388), (4847, 16732), (6157, 13172), (6586, 12314), (6956, 11659), (8366, 9694)]