208839820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{307}}^1$

素因数の和:479

約数の個数: 96

約数和(自身を含む): 519095808

約数和(自身を除く): 310255988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 113, 140, 172, 215, 226, 301, 307, 430, 452, 565, 602, 614, 791, 860, 1130, 1204, 1228, 1505, 1535, 1582, 2149, 2260, 3010, 3070, 3164, 3955, 4298, 4859, 6020, 6140, 7910, 8596, 9718, 10745, 13201, 15820, 19436, 21490, 24295, 26402, 34013, 34691, 42980, 48590, 52804, 66005, 68026, 69382, 92407, 97180, 132010, 136052, 138764, 170065, 173455, 184814, 242837, 264020, 340130, 346910, 369628, 462035, 485674, 680260, 693820, 924070, 971348, 1214185, 1491713, 1848140, 2428370, 2983426, 4856740, 5966852, 7458565, 10441991, 14917130, 20883982, 29834260, 41767964, 52209955, 104419910, 208839820]

約数ペア:

[(1, 208839820), (2, 104419910), (4, 52209955), (5, 41767964), (7, 29834260), (10, 20883982), (14, 14917130), (20, 10441991), (28, 7458565), (35, 5966852), (43, 4856740), (70, 2983426), (86, 2428370), (113, 1848140), (140, 1491713), (172, 1214185), (215, 971348), (226, 924070), (301, 693820), (307, 680260), (430, 485674), (452, 462035), (565, 369628), (602, 346910), (614, 340130), (791, 264020), (860, 242837), (1130, 184814), (1204, 173455), (1228, 170065), (1505, 138764), (1535, 136052), (1582, 132010), (2149, 97180), (2260, 92407), (3010, 69382), (3070, 68026), (3164, 66005), (3955, 52804), (4298, 48590), (4859, 42980), (6020, 34691), (6140, 34013), (7910, 26402), (8596, 24295), (9718, 21490), (10745, 19436), (13201, 15820)]