142421356

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:491

約数の個数: 72

約数和(自身を含む): 316510208

約数和(自身を除く): 174088852

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 127, 154, 242, 254, 308, 331, 484, 508, 662, 847, 889, 1324, 1397, 1694, 1778, 2317, 2794, 3388, 3556, 3641, 4634, 5588, 7282, 9268, 9779, 14564, 15367, 19558, 25487, 30734, 39116, 40051, 42037, 50974, 61468, 80102, 84074, 101948, 107569, 160204, 168148, 215138, 280357, 294259, 430276, 462407, 560714, 588518, 924814, 1121428, 1177036, 1849628, 3236849, 5086477, 6473698, 10172954, 12947396, 20345908, 35605339, 71210678, 142421356]

約数ペア:

[(1, 142421356), (2, 71210678), (4, 35605339), (7, 20345908), (11, 12947396), (14, 10172954), (22, 6473698), (28, 5086477), (44, 3236849), (77, 1849628), (121, 1177036), (127, 1121428), (154, 924814), (242, 588518), (254, 560714), (308, 462407), (331, 430276), (484, 294259), (508, 280357), (662, 215138), (847, 168148), (889, 160204), (1324, 107569), (1397, 101948), (1694, 84074), (1778, 80102), (2317, 61468), (2794, 50974), (3388, 42037), (3556, 40051), (3641, 39116), (4634, 30734), (5588, 25487), (7282, 19558), (9268, 15367), (9779, 14564)]